122210311320 has 96 divisors (see below), whose sum is σ = 397635376320. Its totient is φ = 32552340480.

The previous prime is 122210311291. The next prime is 122210311337. The reversal of 122210311320 is 23113012221.

122210311320 is a `hidden beast` number, since 1 + 2 + 22 + 10 + 311 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122210311293 and 122210311302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124497 + ... + 509823.

It is an arithmetic number, because the mean of its divisors is an integer number (4142035170).

Almost surely, 2^122210311320 is an apocalyptic number.

122210311320 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 122210311320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198817688160).

122210311320 is an abundant number, since it is smaller than the sum of its proper divisors (275425065000).

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

122210311320 is a wasteful number, since it uses less digits than its factorization.

122210311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386225 (or 386218 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 122210311320 its reverse (23113012221), we get a palindrome (145323323541).

The spelling of 122210311320 in words is "one hundred twenty-two billion, two hundred ten million, three hundred eleven thousand, three hundred twenty".