22121000212010 has 16 divisors (see below), whose sum is σ = 45506057579136. Its totient is φ = 7584342929808.

The previous prime is 22121000211967. The next prime is 22121000212039. The reversal of 22121000212010 is 1021200012122.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158007144302 + ... + 158007144441.

It is an arithmetic number, because the mean of its divisors is an integer number (2844128598696).

Almost surely, 2^{22121000212010} is an apocalyptic number.

22121000212010 is an abundant number, since it is smaller than the sum of its proper divisors (23385057367126).

22121000212010 is a wasteful number, since it uses less digits than its factorization.

22121000212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316014288757.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22121000212010 its reverse (1021200012122), we get a palindrome (23142200224132).

The spelling of 22121000212010 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred twelve thousand, ten".