20256247222 has 8 divisors (see below), whose sum is σ = 30449997216. Its totient is φ = 10106248152.

The previous prime is 20256247153. The next prime is 20256247229. The reversal of 20256247222 is 22274265202.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20256247229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10936573 + ... + 10938424.

It is an arithmetic number, because the mean of its divisors is an integer number (3806249652).

Almost surely, 2^20256247222 is an apocalyptic number.

20256247222 is a deficient number, since it is larger than the sum of its proper divisors (10193749994).

20256247222 is a wasteful number, since it uses less digits than its factorization.

20256247222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21875462.

The product of its (nonzero) digits is 53760, while the sum is 34.

The spelling of 20256247222 in words is "twenty billion, two hundred fifty-six million, two hundred forty-seven thousand, two hundred twenty-two".