221122112210120 has 32 divisors (see below), whose sum is σ = 542754275425920. Its totient is φ = 80408040803520.

The previous prime is 221122112210099. The next prime is 221122112210159. The reversal of 221122112210120 is 21012211221122.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 221122112210092 and 221122112210101.

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, 251275127072 + ... + 251275127951.

It is an arithmetic number, because the mean of its divisors is an integer number (16961071107060).

Almost surely, 2^{221122112210120} is an apocalyptic number.

221122112210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221122112210120 is an abundant number, since it is smaller than the sum of its proper divisors (321632163215800).

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

221122112210120 is a wasteful number, since it uses less digits than its factorization.

221122112210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502550255045 (or 502550255041 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 221122112210120 its reverse (21012211221122), we get a palindrome (242134323431242).

The spelling of 221122112210120 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, one hundred twelve million, two hundred ten thousand, one hundred twenty".