122220442 has 16 divisors (see below), whose sum is σ = 190085760. Its totient is φ = 58868208.

The previous prime is 122220437. The next prime is 122220451. The reversal of 122220442 is 244022221.

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, 26083 + ... + 30409.

It is an arithmetic number, because the mean of its divisors is an integer number (11880360).

Almost surely, 2^122220442 is an apocalyptic number.

122220442 is a deficient number, since it is larger than the sum of its proper divisors (67865318).

122220442 is a wasteful number, since it uses less digits than its factorization.

122220442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 122220442 is about 11055.3354539788. The cubic root of 122220442 is about 496.2661081807.

Adding to 122220442 its reverse (244022221), we get a palindrome (366242663).

The spelling of 122220442 in words is "one hundred twenty-two million, two hundred twenty thousand, four hundred forty-two".