221000221112120 has 32 divisors (see below), whose sum is σ = 499141183828320. Its totient is φ = 88063966431360.

The previous prime is 221000221112119. The next prime is 221000221112137. The reversal of 221000221112120 is 21211122000122.

It is a super-2 number, since 2×221000221112120² (a number of 29 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 7 ways as a sum of consecutive naturals, for example, 10503802271 + ... + 10503823310.

It is an arithmetic number, because the mean of its divisors is an integer number (15598161994635).

Almost surely, 2^{221000221112120} is an apocalyptic number.

221000221112120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221000221112120 is an abundant number, since it is smaller than the sum of its proper divisors (278140962716200).

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

221000221112120 is a wasteful number, since it uses less digits than its factorization.

221000221112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21007625855 (or 21007625851 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221000221112120 its reverse (21211122000122), we get a palindrome (242211343112242).

The spelling of 221000221112120 in words is "two hundred twenty-one trillion, two hundred twenty-one million, one hundred twelve thousand, one hundred twenty".