221110222011210 has 48 divisors (see below), whose sum is σ = 657013231120896. Its totient is φ = 50539479316704.

The previous prime is 221110222011187. The next prime is 221110222011233. The reversal of 221110222011210 is 12110222011122.

221110222011210 is a `hidden beast` number, since 2 + 211 + 10 + 2 + 220 + 11 + 210 = 666.

221110222011210 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 (221110222011187) and next prime (221110222011233).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175484302554 + ... + 175484303813.

It is an arithmetic number, because the mean of its divisors is an integer number (13687775648352).

Almost surely, 2^{221110222011210} is an apocalyptic number.

221110222011210 is an abundant number, since it is smaller than the sum of its proper divisors (435903009109686).

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

221110222011210 is a wasteful number, since it uses less digits than its factorization.

221110222011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350968606387 (or 350968606384 counting only the distinct ones).

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

Adding to 221110222011210 its reverse (12110222011122), we get a palindrome (233220444022332).

The spelling of 221110222011210 in words is "two hundred twenty-one trillion, one hundred ten billion, two hundred twenty-two million, eleven thousand, two hundred ten".