131222133100 has 72 divisors (see below), whose sum is σ = 289243098368. Its totient is φ = 51662318400.

The previous prime is 131222133079. The next prime is 131222133131. The reversal of 131222133100 is 1331222131.

It is a super-2 number, since 2×131222133100² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8722585 + ... + 8737615.

Almost surely, 2^131222133100 is an apocalyptic number.

131222133100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131222133100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144621549184).

131222133100 is an abundant number, since it is smaller than the sum of its proper divisors (158020965268).

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

131222133100 is a wasteful number, since it uses less digits than its factorization.

131222133100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16415 (or 16408 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131222133100 its reverse (1331222131), we get a palindrome (132553355231).

The spelling of 131222133100 in words is "one hundred thirty-one billion, two hundred twenty-two million, one hundred thirty-three thousand, one hundred".