101221111122 has 32 divisors (see below), whose sum is σ = 207939148224. Its totient is φ = 32824440000.

The previous prime is 101221111111. The next prime is 101221111133. The reversal of 101221111122 is 221111122101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (101221111111) and next prime (101221111133).

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, 2174997 + ... + 2221047.

It is an arithmetic number, because the mean of its divisors is an integer number (6498098382).

Almost surely, 2^101221111122 is an apocalyptic number.

101221111122 is an abundant number, since it is smaller than the sum of its proper divisors (106718037102).

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

101221111122 is a wasteful number, since it uses less digits than its factorization.

101221111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55994.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101221111122 its reverse (221111122101), we get a palindrome (322332233223).

It can be divided in two parts, 101 and 221111122, that multiplied together give a palindrome (22332223322).

The spelling of 101221111122 in words is "one hundred one billion, two hundred twenty-one million, one hundred eleven thousand, one hundred twenty-two".