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120222331131 = 3730139189949
BaseRepresentation
bin110111111110111001…
…1110011000011111011
3102111022111112012110210
41233331303303003323
53432203404044011
6131121313442203
711454135645060
oct1577563630373
9374274465423
10120222331131
1146a9340a861
121b372270363
13b44c28cb56
145b66a9cc67
1531d97716a6
hex1bfdcf30fb

120222331131 has 16 divisors (see below), whose sum is σ = 183202976000. Its totient is φ = 68695833888.

The previous prime is 120222331121. The next prime is 120222331157. The reversal of 120222331131 is 131133222021.

It is not a de Polignac number, because 120222331131 - 215 = 120222298363 is a prime.

It is a super-2 number, since 2×1202223311312 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120222331098 and 120222331107.

It is not an unprimeable number, because it can be changed into a prime (120222331121) 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, 537945 + ... + 727893.

It is an arithmetic number, because the mean of its divisors is an integer number (11450186000).

Almost surely, 2120222331131 is an apocalyptic number.

120222331131 is a deficient number, since it is larger than the sum of its proper divisors (62980644869).

120222331131 is a wasteful number, since it uses less digits than its factorization.

120222331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220098.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 120222331131 its reverse (131133222021), we get a palindrome (251355553152).

The spelling of 120222331131 in words is "one hundred twenty billion, two hundred twenty-two million, three hundred thirty-one thousand, one hundred thirty-one".

Divisors: 1 3 7 21 30139 90417 189949 210973 569847 632919 1329643 3988929 5724872911 17174618733 40074110377 120222331131