122312031100 has 108 divisors (see below), whose sum is σ = 309955067856. Its totient is φ = 41771950080.

The previous prime is 122312031097. The next prime is 122312031133. The reversal of 122312031100 is 1130213221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1210737 + ... + 1307863.

It is an arithmetic number, because the mean of its divisors is an integer number (2869954332).

Almost surely, 2^122312031100 is an apocalyptic number.

122312031100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122312031100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154977533928).

122312031100 is an abundant number, since it is smaller than the sum of its proper divisors (187643036756).

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

122312031100 is a wasteful number, since it uses less digits than its factorization.

122312031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97412 (or 97398 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 122312031100 its reverse (1130213221), we get a palindrome (123442244321).

The spelling of 122312031100 in words is "one hundred twenty-two billion, three hundred twelve million, thirty-one thousand, one hundred".