21020120200022 has 8 divisors (see below), whose sum is σ = 31531704074496. Its totient is φ = 10509552175192.

The previous prime is 21020120200007. The next prime is 21020120200033. The reversal of 21020120200022 is 22000202102012.

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

It is a congruent number.

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, 253910678 + ... + 253993449.

It is an arithmetic number, because the mean of its divisors is an integer number (3941463009312).

Almost surely, 2^{21020120200022} is an apocalyptic number.

21020120200022 is a deficient number, since it is larger than the sum of its proper divisors (10511583874474).

21020120200022 is a wasteful number, since it uses less digits than its factorization.

21020120200022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507924822.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21020120200022 its reverse (22000202102012), we get a palindrome (43020322302034).

The spelling of 21020120200022 in words is "twenty-one trillion, twenty billion, one hundred twenty million, two hundred thousand, twenty-two".