12210623442 has 12 divisors (see below), whose sum is σ = 26456350830. Its totient is φ = 4070207808.

The previous prime is 12210623423. The next prime is 12210623459. The reversal of 12210623442 is 24432601221.

12210623442 is a `hidden beast` number, since 1 + 2 + 210 + 6 + 2 + 3 + 442 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12210029001 + 594441 = 110499^2 + 771^2 .

It is a super-3 number, since 3×12210623442³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339183967 + ... + 339184002.

Almost surely, 2^12210623442 is an apocalyptic number.

12210623442 is an abundant number, since it is smaller than the sum of its proper divisors (14245727388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12210623442 is a wasteful number, since it uses less digits than its factorization.

12210623442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678367977 (or 678367974 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The spelling of 12210623442 in words is "twelve billion, two hundred ten million, six hundred twenty-three thousand, four hundred forty-two".