122012210988 has 72 divisors (see below), whose sum is σ = 317509272080. Its totient is φ = 39477352320.

The previous prime is 122012210987. The next prime is 122012211071. The reversal of 122012210988 is 889012210221.

It is a super-2 number, since 2×122012210988² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (122012210987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451983 + ... + 669561.

Almost surely, 2^122012210988 is an apocalyptic number.

122012210988 is a gapful number since it is divisible by the number (18) 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 122012210988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158754636040).

122012210988 is an abundant number, since it is smaller than the sum of its proper divisors (195497061092).

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

122012210988 is a wasteful number, since it uses less digits than its factorization.

122012210988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218047 (or 218042 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The spelling of 122012210988 in words is "one hundred twenty-two billion, twelve million, two hundred ten thousand, nine hundred eighty-eight".