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1212020010222 = 237138792079229
BaseRepresentation
bin10001101000110010000…
…001011010110011101110
311021212102202110220012020
4101220302001122303232
5124324204110311342
62324443323051010
7153364662050430
oct21506201326356
94255382426166
101212020010222
1142801877573a
12176a93070a66
138a3a69374a8
144293aa74650
15217da0b00ec
hex11a3205acee

1212020010222 has 32 divisors (see below), whose sum is σ = 2770532390400. Its totient is φ = 346266314208.

The previous prime is 1212020010203. The next prime is 1212020010239. The reversal of 1212020010222 is 2220100202121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456697 + ... + 1622532.

It is an arithmetic number, because the mean of its divisors is an integer number (86579137200).

Almost surely, 21212020010222 is an apocalyptic number.

1212020010222 is an abundant number, since it is smaller than the sum of its proper divisors (1558512380178).

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

1212020010222 is a wasteful number, since it uses less digits than its factorization.

1212020010222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093120.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1212020010222 its reverse (2220100202121), we get a palindrome (3432120212343).

The spelling of 1212020010222 in words is "one trillion, two hundred twelve billion, twenty million, ten thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 13879 27758 41637 83274 97153 194306 291459 582918 2079229 4158458 6237687 12475374 14554603 29109206 43663809 87327618 28857619291 57715238582 86572857873 173145715746 202003335037 404006670074 606010005111 1212020010222