222020210210021 has 16 divisors (see below), whose sum is σ = 234474738180480. Its totient is φ = 209799361823040.

The previous prime is 222020210209999. The next prime is 222020210210047. The reversal of 222020210210021 is 120012012020222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 222020210210021 - 2¹⁴ = 222020210193637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222020210210621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41421095 + ... + 46473083.

It is an arithmetic number, because the mean of its divisors is an integer number (14654671136280).

Almost surely, 2^{222020210210021} is an apocalyptic number.

It is an amenable number.

222020210210021 is a deficient number, since it is larger than the sum of its proper divisors (12454527970459).

222020210210021 is a wasteful number, since it uses less digits than its factorization.

222020210210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5075116.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222020210210021 its reverse (120012012020222), we get a palindrome (342032222230243).

The spelling of 222020210210021 in words is "two hundred twenty-two trillion, twenty billion, two hundred ten million, two hundred ten thousand, twenty-one".