221111000120120 has 64 divisors (see below), whose sum is σ = 542755375129440. Its totient is φ = 80399796364800.

The previous prime is 221111000120113. The next prime is 221111000120141. The reversal of 221111000120120 is 21021000111122.

221111000120120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221111000120095 and 221111000120104.

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, 4704887 + ... + 21548966.

Almost surely, 2^{221111000120120} is an apocalyptic number.

221111000120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221111000120120 is an abundant number, since it is smaller than the sum of its proper divisors (321644375009320).

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

221111000120120 is a wasteful number, since it uses less digits than its factorization.

221111000120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26273016 (or 26273012 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221111000120120 its reverse (21021000111122), we get a palindrome (242132000231242).

The spelling of 221111000120120 in words is "two hundred twenty-one trillion, one hundred eleven billion, one hundred twenty thousand, one hundred twenty".