221110012120122 has 24 divisors (see below), whose sum is σ = 479611796335776. Its totient is φ = 73620244541256.

The previous prime is 221110012120001. The next prime is 221110012120133. The reversal of 221110012120122 is 221021210011122.

221110012120122 is a `hidden beast` number, since 221 + 1 + 100 + 121 + 201 + 22 = 666.

221110012120122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 221110012120095 and 221110012120104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6924386268 + ... + 6924418199.

It is an arithmetic number, because the mean of its divisors is an integer number (19983824847324).

Almost surely, 2^{221110012120122} is an apocalyptic number.

221110012120122 is an abundant number, since it is smaller than the sum of its proper divisors (258501784215654).

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

221110012120122 is a wasteful number, since it uses less digits than its factorization.

221110012120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13848805362 (or 13848805359 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 221110012120122 its reverse (221021210011122), we get a palindrome (442131222131244).

The spelling of 221110012120122 in words is "two hundred twenty-one trillion, one hundred ten billion, twelve million, one hundred twenty thousand, one hundred twenty-two".