122020520250 has 128 divisors (see below), whose sum is σ = 315757128960. Its totient is φ = 31362048000.

The previous prime is 122020520239. The next prime is 122020520311. The reversal of 122020520250 is 52025020221.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2528346 + ... + 2576154.

It is an arithmetic number, because the mean of its divisors is an integer number (2466852570).

Almost surely, 2^122020520250 is an apocalyptic number.

122020520250 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 122020520250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157878564480).

122020520250 is an abundant number, since it is smaller than the sum of its proper divisors (193736608710).

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

122020520250 is a wasteful number, since it uses less digits than its factorization.

122020520250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47953 (or 47943 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

Adding to 122020520250 its reverse (52025020221), we get a palindrome (174045540471).

The spelling of 122020520250 in words is "one hundred twenty-two billion, twenty million, five hundred twenty thousand, two hundred fifty".