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12022101211220 = 22529190110903609
BaseRepresentation
bin1010111011110001110100…
…0100100111100001010100
31120120022010220101221221222
42232330131010213201110
53033432230402224340
641322513235425512
72350365606136442
oct256743504474124
946508126357858
1012022101211220
1139155a9799a21
121421b69455298
136928aa4ba769
142d7c30d87b92
1515cac83928b5
hexaef1d127854

12022101211220 has 48 divisors (see below), whose sum is σ = 26130719437200. Its totient is φ = 4640575564800.

The previous prime is 12022101211217. The next prime is 12022101211273. The reversal of 12022101211220 is 2211210122021.

12022101211220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 572255938576 + 11449845272644 = 756476^2 + 3383762^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4349225 + ... + 6554384.

It is an arithmetic number, because the mean of its divisors is an integer number (544389988275).

Almost surely, 212022101211220 is an apocalyptic number.

12022101211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12022101211220 is an abundant number, since it is smaller than the sum of its proper divisors (14108618225980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12022101211220 is a wasteful number, since it uses less digits than its factorization.

12022101211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10905548 (or 10905546 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12022101211220 its reverse (2211210122021), we get a palindrome (14233311333241).

The spelling of 12022101211220 in words is "twelve trillion, twenty-two billion, one hundred one million, two hundred eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 1901 3802 7604 9505 19010 38020 55129 110258 220516 275645 551290 1102580 10903609 21807218 43614436 54518045 109036090 218072180 316204661 632409322 1264818644 1581023305 3162046610 6324093220 20727760709 41455521418 82911042836 103638803545 207277607090 414555214180 601105060561 1202210121122 2404420242244 3005525302805 6011050605610 12022101211220