122600420 has 12 divisors (see below), whose sum is σ = 257460924. Its totient is φ = 49040160.

The previous prime is 122600399. The next prime is 122600431. The reversal of 122600420 is 24006221.

It can be written as a sum of positive squares in 2 ways, for example, as 45265984 + 77334436 = 6728^2 + 8794^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3064991 + ... + 3065030.

It is an arithmetic number, because the mean of its divisors is an integer number (21455077).

Almost surely, 2^122600420 is an apocalyptic number.

122600420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122600420 is an abundant number, since it is smaller than the sum of its proper divisors (134860504).

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

122600420 is a wasteful number, since it uses less digits than its factorization.

122600420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6130030 (or 6130028 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 122600420 is about 11072.5073944432. The cubic root of 122600420 is about 496.7798659945.

Adding to 122600420 its reverse (24006221), we get a palindrome (146606641).

The spelling of 122600420 in words is "one hundred twenty-two million, six hundred thousand, four hundred twenty".