221122110102 has 32 divisors (see below), whose sum is σ = 454729625952. Its totient is φ = 71631143424.

The previous prime is 221122110049. The next prime is 221122110161. The reversal of 221122110102 is 201011221122.

It is a super-2 number, since 2×221122110102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394483 + ... + 773214.

It is an arithmetic number, because the mean of its divisors is an integer number (14210300811).

Almost surely, 2^221122110102 is an apocalyptic number.

221122110102 is an abundant number, since it is smaller than the sum of its proper divisors (233607515850).

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

221122110102 is a wasteful number, since it uses less digits than its factorization.

221122110102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168592.

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

Adding to 221122110102 its reverse (201011221122), we get a palindrome (422133331224).

The spelling of 221122110102 in words is "two hundred twenty-one billion, one hundred twenty-two million, one hundred ten thousand, one hundred two".