123220994 has 16 divisors (see below), whose sum is σ = 199298232. Its totient is φ = 56800128.

The previous prime is 123220967. The next prime is 123221009. The reversal of 123220994 is 499022321.

It can be written as a sum of positive squares in 4 ways, for example, as 89056969 + 34164025 = 9437^2 + 5845^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123220994.

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, 22292 + ... + 27264.

Almost surely, 2^123220994 is an apocalyptic number.

123220994 is a deficient number, since it is larger than the sum of its proper divisors (76077238).

123220994 is a wasteful number, since it uses less digits than its factorization.

123220994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5941.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 123220994 is about 11100.4952141785. The cubic root of 123220994 is about 497.6166493302.

The spelling of 123220994 in words is "one hundred twenty-three million, two hundred twenty thousand, nine hundred ninety-four".