122140442 has 16 divisors (see below), whose sum is σ = 191488320. Its totient is φ = 58319712.

The previous prime is 122140439. The next prime is 122140477. The reversal of 122140442 is 244041221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32198 + ... + 35790.

It is an arithmetic number, because the mean of its divisors is an integer number (11968020).

Almost surely, 2^122140442 is an apocalyptic number.

122140442 is a deficient number, since it is larger than the sum of its proper divisors (69347878).

122140442 is a wasteful number, since it uses less digits than its factorization.

122140442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4357.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 122140442 is about 11051.7166992282. The cubic root of 122140442 is about 496.1578067286.

Adding to 122140442 its reverse (244041221), we get a palindrome (366181663).

The spelling of 122140442 in words is "one hundred twenty-two million, one hundred forty thousand, four hundred forty-two".