122072500650 has 96 divisors (see below), whose sum is σ = 305946989568. Its totient is φ = 32209278400.

The previous prime is 122072500603. The next prime is 122072500651. The reversal of 122072500650 is 56005270221.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (122072500651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6809599 + ... + 6827501.

It is an arithmetic number, because the mean of its divisors is an integer number (3186947808).

Almost surely, 2^122072500650 is an apocalyptic number.

122072500650 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 122072500650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152973494784).

122072500650 is an abundant number, since it is smaller than the sum of its proper divisors (183874488918).

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

122072500650 is a wasteful number, since it uses less digits than its factorization.

122072500650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18396 (or 18391 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

Adding to 122072500650 its reverse (56005270221), we get a palindrome (178077770871).

The spelling of 122072500650 in words is "one hundred twenty-two billion, seventy-two million, five hundred thousand, six hundred fifty".