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12202131012 = 2235871732273
BaseRepresentation
bin10110101110100110…
…11011111001000100
31011111101110110222020
423113103123321010
5144442221143022
65334450003140
7611244254661
oct132723337104
934441413866
1012202131012
1151a186a6a5
1224465764b0
1311c5cb6a86
1483a7d6a68
154b639b35c
hex2d74dbe44

12202131012 has 24 divisors (see below), whose sum is σ = 28520159136. Its totient is φ = 4060445568.

The previous prime is 12202131001. The next prime is 12202131017. The reversal of 12202131012 is 21013120221.

It is a junction number, because it is equal to n+sod(n) for n = 12202130982 and 12202131000.

It is not an unprimeable number, because it can be changed into a prime (12202131017) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 859093 + ... + 873180.

It is an arithmetic number, because the mean of its divisors is an integer number (1188339964).

Almost surely, 212202131012 is an apocalyptic number.

12202131012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12202131012 is an abundant number, since it is smaller than the sum of its proper divisors (16318028124).

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

12202131012 is a wasteful number, since it uses less digits than its factorization.

12202131012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732867 (or 1732865 counting only the distinct ones).

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

Adding to 12202131012 its reverse (21013120221), we get a palindrome (33215251233).

The spelling of 12202131012 in words is "twelve billion, two hundred two million, one hundred thirty-one thousand, twelve".

Divisors: 1 2 3 4 6 12 587 1174 1761 2348 3522 7044 1732273 3464546 5196819 6929092 10393638 20787276 1016844251 2033688502 3050532753 4067377004 6101065506 12202131012