221122011102 has 32 divisors (see below), whose sum is σ = 442855168800. Its totient is φ = 73605542400.

The previous prime is 221122011083. The next prime is 221122011161. The reversal of 221122011102 is 201110221122.

It is a super-2 number, since 2×221122011102² (a number of 23 digits) contains 22 as substring.

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, 18891852 + ... + 18903552.

It is an arithmetic number, because the mean of its divisors is an integer number (13839224025).

Almost surely, 2^221122011102 is an apocalyptic number.

221122011102 is an abundant number, since it is smaller than the sum of its proper divisors (221733157698).

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

221122011102 is a wasteful number, since it uses less digits than its factorization.

221122011102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15788.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221122011102 its reverse (201110221122), we get a palindrome (422232232224).

The spelling of 221122011102 in words is "two hundred twenty-one billion, one hundred twenty-two million, eleven thousand, one hundred two".