122031130 has 32 divisors (see below), whose sum is σ = 244717200. Its totient is φ = 43502592.

The previous prime is 122031127. The next prime is 122031131. The reversal of 122031130 is 31130221.

It can be written as a sum of positive squares in 8 ways, for example, as 7177041 + 114854089 = 2679^2 + 10717^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 122031130.

It is not an unprimeable number, because it can be changed into a prime (122031131) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12415 + ... + 19954.

Almost surely, 2^122031130 is an apocalyptic number.

122031130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122031130 is an abundant number, since it is smaller than the sum of its proper divisors (122686070).

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

122031130 is a wasteful number, since it uses less digits than its factorization.

122031130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32418.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 122031130 is about 11046.7701161923. The cubic root of 122031130 is about 496.0097471420.

Adding to 122031130 its reverse (31130221), we get a palindrome (153161351).

Subtracting from 122031130 its reverse (31130221), we obtain a palindrome (90900909).

The spelling of 122031130 in words is "one hundred twenty-two million, thirty-one thousand, one hundred thirty".