122220794 has 4 divisors (see below), whose sum is σ = 183331194. Its totient is φ = 61110396.

The previous prime is 122220779. The next prime is 122220799. The reversal of 122220794 is 497022221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 497022221 = 37 ⋅13433033.

It can be written as a sum of positive squares in only one way, i.e., 71995225 + 50225569 = 8485^2 + 7087^2 .

It is not an unprimeable number, because it can be changed into a prime (122220799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30555197 + ... + 30555200.

Almost surely, 2^122220794 is an apocalyptic number.

122220794 is a deficient number, since it is larger than the sum of its proper divisors (61110400).

122220794 is an equidigital number, since it uses as much as digits as its factorization.

122220794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61110399.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 122220794 is about 11055.3513738822. The cubic root of 122220794 is about 496.2665846027.

The spelling of 122220794 in words is "one hundred twenty-two million, two hundred twenty thousand, seven hundred ninety-four".