122501800 has 48 divisors (see below), whose sum is σ = 294651900. Its totient is φ = 47308800.

The previous prime is 122501791. The next prime is 122501807. The reversal of 122501800 is 8105221.

It can be written as a sum of positive squares in 6 ways, for example, as 60186564 + 62315236 = 7758^2 + 7894^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122501807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4761 + ... + 16360.

Almost surely, 2^122501800 is an apocalyptic number.

122501800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122501800 is an abundant number, since it is smaller than the sum of its proper divisors (172150100).

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

122501800 is a wasteful number, since it uses less digits than its factorization.

122501800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21166 (or 21157 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 122501800 is about 11068.0531260019. The cubic root of 122501800 is about 496.6466267207.

The spelling of 122501800 in words is "one hundred twenty-two million, five hundred one thousand, eight hundred".