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211002211102220 = 22561172952632051
BaseRepresentation
bin101111111110011111000111…
…110101101110111000001100
31000200002121120212212100220122
4233332133013311232320030
5210124030012020232340
62024433024432404112
762305256330540246
oct5776370765567014
91020077525770818
10211002211102220
116126059839506a
121b7b97856a6638
139097566800a35
143a167c0ac7096
15195d9b9909db5
hexbfe7c7d6ee0c

211002211102220 has 24 divisors (see below), whose sum is σ = 450368653863408. Its totient is φ = 83017263384000.

The previous prime is 211002211102169. The next prime is 211002211102229. The reversal of 211002211102220 is 22201112200112.

It is not an unprimeable number, because it can be changed into a prime (211002211102229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86476314806 + ... + 86476317245.

It is an arithmetic number, because the mean of its divisors is an integer number (18765360577642).

Almost surely, 2211002211102220 is an apocalyptic number.

211002211102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211002211102220 is an abundant number, since it is smaller than the sum of its proper divisors (239366442761188).

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

211002211102220 is a wasteful number, since it uses less digits than its factorization.

211002211102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172952632121 (or 172952632119 counting only the distinct ones).

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

Adding to 211002211102220 its reverse (22201112200112), we get a palindrome (233203323302332).

The spelling of 211002211102220 in words is "two hundred eleven trillion, two billion, two hundred eleven million, one hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 172952632051 345905264102 691810528204 864763160255 1729526320510 3459052641020 10550110555111 21100221110222 42200442220444 52750552775555 105501105551110 211002211102220