21412423111202 has 4 divisors (see below), whose sum is σ = 32118634666806. Its totient is φ = 10706211555600.

The previous prime is 21412423111193. The next prime is 21412423111231. The reversal of 21412423111202 is 20211132421412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12687423687481 + 8724999423721 = 3561941^2 + 2953811^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5353105777799 + ... + 5353105777802.

Almost surely, 2^{21412423111202} is an apocalyptic number.

21412423111202 is a deficient number, since it is larger than the sum of its proper divisors (10706211555604).

21412423111202 is a wasteful number, since it uses less digits than its factorization.

21412423111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10706211555603.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 21412423111202 its reverse (20211132421412), we get a palindrome (41623555532614).

The spelling of 21412423111202 in words is "twenty-one trillion, four hundred twelve billion, four hundred twenty-three million, one hundred eleven thousand, two hundred two".