221101221010120 has 32 divisors (see below), whose sum is σ = 542702997025920. Its totient is φ = 80400444003520.

The previous prime is 221101221010093. The next prime is 221101221010147. The reversal of 221101221010120 is 21010122101122.

221101221010120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (221101221010093) and next prime (221101221010147).

It is a junction number, because it is equal to n+sod(n) for n = 221101221010094 and 221101221010103.

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, 251251387072 + ... + 251251387951.

It is an arithmetic number, because the mean of its divisors is an integer number (16959468657060).

Almost surely, 2^{221101221010120} is an apocalyptic number.

221101221010120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221101221010120 is an abundant number, since it is smaller than the sum of its proper divisors (321601776015800).

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

221101221010120 is a wasteful number, since it uses less digits than its factorization.

221101221010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502502775045 (or 502502775041 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221101221010120 its reverse (21010122101122), we get a palindrome (242111343111242).

The spelling of 221101221010120 in words is "two hundred twenty-one trillion, one hundred one billion, two hundred twenty-one million, ten thousand, one hundred twenty".