221332113100 has 54 divisors (see below), whose sum is σ = 558705503580. Its totient is φ = 75885294240.

The previous prime is 221332113097. The next prime is 221332113103. The reversal of 221332113100 is 1311233122.

It is an interprime number because it is at equal distance from previous prime (221332113097) and next prime (221332113103).

It is a super-2 number, since 2×221332113100² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221332113103) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 22580010 + ... + 22589809.

Almost surely, 2^221332113100 is an apocalyptic number.

221332113100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221332113100 is an abundant number, since it is smaller than the sum of its proper divisors (337373390480).

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

221332113100 is a wasteful number, since it uses less digits than its factorization.

221332113100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45169847 (or 45169833 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 221332113100 its reverse (1311233122), we get a palindrome (222643346222).

The spelling of 221332113100 in words is "two hundred twenty-one billion, three hundred thirty-two million, one hundred thirteen thousand, one hundred".