20021022210210 has 64 divisors (see below), whose sum is σ = 55023978627072. Its totient is φ = 4567135743936.

The previous prime is 20021022210209. The next prime is 20021022210221. The reversal of 20021022210210 is 1201222012002.

It is a super-2 number, since 2×20021022210210² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20021022210210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94663954 + ... + 94875213.

It is an arithmetic number, because the mean of its divisors is an integer number (859749666048).

Almost surely, 2^{20021022210210} is an apocalyptic number.

20021022210210 is an abundant number, since it is smaller than the sum of its proper divisors (35002956416862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20021022210210 is a wasteful number, since it uses less digits than its factorization.

20021022210210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189539687.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20021022210210 its reverse (1201222012002), we get a palindrome (21222244222212).

The spelling of 20021022210210 in words is "twenty trillion, twenty-one billion, twenty-two million, two hundred ten thousand, two hundred ten".