101220012110 has 32 divisors (see below), whose sum is σ = 213066450432. Its totient is φ = 33896933280.

The previous prime is 101220012107. The next prime is 101220012169. The reversal of 101220012110 is 11210022101.

It is a junction number, because it is equal to n+sod(n) for n = 101220012091 and 101220012100.

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, 16810946 + ... + 16816965.

It is an arithmetic number, because the mean of its divisors is an integer number (6658326576).

Almost surely, 2^101220012110 is an apocalyptic number.

101220012110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101220012110 is an abundant number, since it is smaller than the sum of its proper divisors (111846438322).

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

101220012110 is a wasteful number, since it uses less digits than its factorization.

101220012110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33627968.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101220012110 its reverse (11210022101), we get a palindrome (112430034211).

Subtracting from 101220012110 its reverse (11210022101), we obtain a palindrome (90009990009).

The spelling of 101220012110 in words is "one hundred one billion, two hundred twenty million, twelve thousand, one hundred ten".