122012120190 has 64 divisors (see below), whose sum is σ = 300962188800. Its totient is φ = 31634167680.

The previous prime is 122012120189. The next prime is 122012120213. The reversal of 122012120190 is 91021210221.

It is a super-2 number, since 2×122012120190² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1513605 + ... + 1592175.

It is an arithmetic number, because the mean of its divisors is an integer number (4702534200).

Almost surely, 2^122012120190 is an apocalyptic number.

122012120190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122012120190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150481094400).

122012120190 is an abundant number, since it is smaller than the sum of its proper divisors (178950068610).

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

122012120190 is a wasteful number, since it uses less digits than its factorization.

122012120190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80017.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 122012120190 in words is "one hundred twenty-two billion, twelve million, one hundred twenty thousand, one hundred ninety".