101123552220 has 48 divisors (see below), whose sum is σ = 287024670240. Its totient is φ = 26596878336.

The previous prime is 101123552219. The next prime is 101123552239. The reversal of 101123552220 is 22255321101.

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, 11539405 + ... + 11548164.

It is an arithmetic number, because the mean of its divisors is an integer number (5979680630).

Almost surely, 2^101123552220 is an apocalyptic number.

101123552220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101123552220 is an abundant number, since it is smaller than the sum of its proper divisors (185901118020).

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

101123552220 is a wasteful number, since it uses less digits than its factorization.

101123552220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23087654 (or 23087652 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 101123552220 its reverse (22255321101), we get a palindrome (123378873321).

The spelling of 101123552220 in words is "one hundred one billion, one hundred twenty-three million, five hundred fifty-two thousand, two hundred twenty".