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122102010231 = 3833171546907
BaseRepresentation
bin111000110110111011…
…0001101000101110111
3102200011111110210110020
41301231312031011313
54000031103311411
6132032021500223
711551541651055
oct1615566150567
9380144423406
10122102010231
1147868446563
121b7b7871673
13b68b82a1c6
145ca45971d5
1532997b8606
hex1c6dd8d177

122102010231 has 16 divisors (see below), whose sum is σ = 165284025984. Its totient is φ = 80166856544.

The previous prime is 122102010227. The next prime is 122102010257. The reversal of 122102010231 is 132010201221.

It is a cyclic number.

It is not a de Polignac number, because 122102010231 - 22 = 122102010227 is a prime.

It is a super-2 number, since 2×1221020102312 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122102010231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102010731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 694521 + ... + 852386.

It is an arithmetic number, because the mean of its divisors is an integer number (10330251624).

Almost surely, 2122102010231 is an apocalyptic number.

122102010231 is a deficient number, since it is larger than the sum of its proper divisors (43182015753).

122102010231 is a wasteful number, since it uses less digits than its factorization.

122102010231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547310.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 122102010231 its reverse (132010201221), we get a palindrome (254112211452).

The spelling of 122102010231 in words is "one hundred twenty-two billion, one hundred two million, ten thousand, two hundred thirty-one".

Divisors: 1 3 83 249 317 951 26311 78933 1546907 4640721 128393281 385179843 490369519 1471108557 40700670077 122102010231