122251400 has 24 divisors (see below), whose sum is σ = 284234970. Its totient is φ = 48900480.

The previous prime is 122251399. The next prime is 122251429. The reversal of 122251400 is 4152221.

It can be written as a sum of positive squares in 3 ways, for example, as 117983044 + 4268356 = 10862^2 + 2066^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 305429 + ... + 305828.

Almost surely, 2^122251400 is an apocalyptic number.

122251400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122251400 is an abundant number, since it is smaller than the sum of its proper divisors (161983570).

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

122251400 is a wasteful number, since it uses less digits than its factorization.

122251400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611273 (or 611264 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 122251400 is about 11056.7355037552. The cubic root of 122251400 is about 496.3080054524.

The spelling of 122251400 in words is "one hundred twenty-two million, two hundred fifty-one thousand, four hundred".