122290442 has 4 divisors (see below), whose sum is σ = 183435666. Its totient is φ = 61145220.

The previous prime is 122290387. The next prime is 122290489. The reversal of 122290442 is 244092221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 115326121 + 6964321 = 10739^2 + 2639^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30572609 + ... + 30572612.

Almost surely, 2^122290442 is an apocalyptic number.

122290442 is a deficient number, since it is larger than the sum of its proper divisors (61145224).

122290442 is an equidigital number, since it uses as much as digits as its factorization.

122290442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61145223.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 122290442 is about 11058.5008929782. The cubic root of 122290442 is about 496.3608331904.

The spelling of 122290442 in words is "one hundred twenty-two million, two hundred ninety thousand, four hundred forty-two".