101220112110 has 32 divisors (see below), whose sum is σ = 261615060000. Its totient is φ = 24915719808.

The previous prime is 101220112073. The next prime is 101220112151. The reversal of 101220112110 is 11211022101.

It is a super-2 number, since 2×101220112110² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129768985 + ... + 129769764.

It is an arithmetic number, because the mean of its divisors is an integer number (8175470625).

Almost surely, 2^101220112110 is an apocalyptic number.

101220112110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101220112110 is an abundant number, since it is smaller than the sum of its proper divisors (160394947890).

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

101220112110 is a wasteful number, since it uses less digits than its factorization.

101220112110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259538772.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101220112110 its reverse (11211022101), we get a palindrome (112431134211).

Subtracting from 101220112110 its reverse (11211022101), we obtain a palindrome (90009090009).

The spelling of 101220112110 in words is "one hundred one billion, two hundred twenty million, one hundred twelve thousand, one hundred ten".