122136351380 has 96 divisors (see below), whose sum is σ = 275306169600. Its totient is φ = 45372607488.

The previous prime is 122136351377. The next prime is 122136351383. The reversal of 122136351380 is 83153631221.

It is an interprime number because it is at equal distance from previous prime (122136351377) and next prime (122136351383).

It is a self number, because there is not a number n which added to its sum of digits gives 122136351380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122136351383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42071009 + ... + 42073911.

It is an arithmetic number, because the mean of its divisors is an integer number (2867772600).

Almost surely, 2^122136351380 is an apocalyptic number.

122136351380 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 122136351380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137653084800).

122136351380 is an abundant number, since it is smaller than the sum of its proper divisors (153169818220).

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

122136351380 is a wasteful number, since it uses less digits than its factorization.

122136351380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5073 (or 5071 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 122136351380 in words is "one hundred twenty-two billion, one hundred thirty-six million, three hundred fifty-one thousand, three hundred eighty".