122211220110 has 64 divisors (see below), whose sum is σ = 335621712384. Its totient is φ = 27899510400.

The previous prime is 122211220099. The next prime is 122211220111. The reversal of 122211220110 is 11022112221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 122211220110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122211220111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188481 + ... + 529100.

It is an arithmetic number, because the mean of its divisors is an integer number (5244089256).

Almost surely, 2^122211220110 is an apocalyptic number.

122211220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122211220110 is an abundant number, since it is smaller than the sum of its proper divisors (213410492274).

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

122211220110 is a wasteful number, since it uses less digits than its factorization.

122211220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718409.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122211220110 its reverse (11022112221), we get a palindrome (133233332331).

The spelling of 122211220110 in words is "one hundred twenty-two billion, two hundred eleven million, two hundred twenty thousand, one hundred ten".