12222223402 has 8 divisors (see below), whose sum is σ = 18368525412. Its totient is φ = 6099381600.

The previous prime is 12222223399. The next prime is 12222223439. The reversal of 12222223402 is 20432222221.

It can be written as a sum of positive squares in 2 ways, for example, as 11176929841 + 1045293561 = 105721^2 + 32331^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5863749 + ... + 5865832.

Almost surely, 2^12222223402 is an apocalyptic number.

12222223402 is a deficient number, since it is larger than the sum of its proper divisors (6146302010).

12222223402 is a wasteful number, since it uses less digits than its factorization.

12222223402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11730104.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12222223402 its reverse (20432222221), we get a palindrome (32654445623).

The spelling of 12222223402 in words is "twelve billion, two hundred twenty-two million, two hundred twenty-three thousand, four hundred two".