101221110102 has 32 divisors (see below), whose sum is σ = 231401491200. Its totient is φ = 28915447968.

The previous prime is 101221110097. The next prime is 101221110119. The reversal of 101221110102 is 201011122101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53349 + ... + 453087.

It is an arithmetic number, because the mean of its divisors is an integer number (7231296600).

Almost surely, 2^101221110102 is an apocalyptic number.

101221110102 is an abundant number, since it is smaller than the sum of its proper divisors (130180381098).

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

101221110102 is a wasteful number, since it uses less digits than its factorization.

101221110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405780.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101221110102 its reverse (201011122101), we get a palindrome (302232232203).

The spelling of 101221110102 in words is "one hundred one billion, two hundred twenty-one million, one hundred ten thousand, one hundred two".