122505770 has 16 divisors (see below), whose sum is σ = 220668840. Its totient is φ = 48967104.

The previous prime is 122505739. The next prime is 122505781. The reversal of 122505770 is 77505221.

It can be written as a sum of positive squares in 4 ways, for example, as 87067561 + 35438209 = 9331^2 + 5953^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13796 + ... + 20864.

Almost surely, 2^122505770 is an apocalyptic number.

122505770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122505770 is a deficient number, since it is larger than the sum of its proper divisors (98163070).

122505770 is a wasteful number, since it uses less digits than its factorization.

122505770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8809.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 122505770 is about 11068.2324695500. The cubic root of 122505770 is about 496.6519917189.

The spelling of 122505770 in words is "one hundred twenty-two million, five hundred five thousand, seven hundred seventy".