123221402002 has 16 divisors (see below), whose sum is σ = 186566688000. Its totient is φ = 61032741840.

The previous prime is 123221401991. The next prime is 123221402021. The reversal of 123221402002 is 200204122321.

It is a super-2 number, since 2×123221402002² (a number of 23 digits) contains 22 as substring.

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, 1035999 + ... + 1148797.

It is an arithmetic number, because the mean of its divisors is an integer number (11660418000).

Almost surely, 2^123221402002 is an apocalyptic number.

123221402002 is a deficient number, since it is larger than the sum of its proper divisors (63345285998).

123221402002 is a wasteful number, since it uses less digits than its factorization.

123221402002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117921.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 123221402002 its reverse (200204122321), we get a palindrome (323425524323).

The spelling of 123221402002 in words is "one hundred twenty-three billion, two hundred twenty-one million, four hundred two thousand, two".