121022220110 has 32 divisors (see below), whose sum is σ = 238663612512. Its totient is φ = 43819194880.

The previous prime is 121022220107. The next prime is 121022220139. The reversal of 121022220110 is 11022220121.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2335319 + ... + 2386578.

It is an arithmetic number, because the mean of its divisors is an integer number (7458237891).

Almost surely, 2^121022220110 is an apocalyptic number.

121022220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121022220110 is a deficient number, since it is larger than the sum of its proper divisors (117641392402).

121022220110 is a wasteful number, since it uses less digits than its factorization.

121022220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4722148.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121022220110 its reverse (11022220121), we get a palindrome (132044440231).

The spelling of 121022220110 in words is "one hundred twenty-one billion, twenty-two million, two hundred twenty thousand, one hundred ten".