20012219974 has 4 divisors (see below), whose sum is σ = 30018329964. Its totient is φ = 10006109986.

The previous prime is 20012219957. The next prime is 20012219989. The reversal of 20012219974 is 47991221002.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5003054992 + ... + 5003054995.

It is an arithmetic number, because the mean of its divisors is an integer number (7504582491).

Almost surely, 2^20012219974 is an apocalyptic number.

20012219974 is a deficient number, since it is larger than the sum of its proper divisors (10006109990).

20012219974 is a wasteful number, since it uses less digits than its factorization.

20012219974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10006109989.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 20012219974 in words is "twenty billion, twelve million, two hundred nineteen thousand, nine hundred seventy-four".