100131221110102 has 32 divisors (see below), whose sum is σ = 195731617741632. Its totient is φ = 37282212900864.

The previous prime is 100131221110093. The next prime is 100131221110103. The reversal of 100131221110102 is 201011122131001.

It is a happy number.

It is a super-2 number, since 2×100131221110102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100131221110103) 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, 16181512923 + ... + 16181519110.

It is an arithmetic number, because the mean of its divisors is an integer number (6116613054426).

Almost surely, 2^{100131221110102} is an apocalyptic number.

100131221110102 is a deficient number, since it is larger than the sum of its proper divisors (95600396631530).

100131221110102 is a wasteful number, since it uses less digits than its factorization.

100131221110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32363032072.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 100131221110102 its reverse (201011122131001), we get a palindrome (301142343241103).

The spelling of 100131221110102 in words is "one hundred trillion, one hundred thirty-one billion, two hundred twenty-one million, one hundred ten thousand, one hundred two".