210222122021021 has 16 divisors (see below), whose sum is σ = 234984740256000. Its totient is φ = 186403725657600.

The previous prime is 210222122021011. The next prime is 210222122021029. The reversal of 210222122021021 is 120120221222012.

210222122021021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 210222122021021 - 2¹⁸ = 210222121758877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210222122020984 and 210222122021002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210222122021029) 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, 55734341 + ... + 59386538.

It is an arithmetic number, because the mean of its divisors is an integer number (14686546266000).

Almost surely, 2^{210222122021021} is an apocalyptic number.

It is an amenable number.

210222122021021 is a deficient number, since it is larger than the sum of its proper divisors (24762618234979).

210222122021021 is a wasteful number, since it uses less digits than its factorization.

210222122021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115124980.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 210222122021021 its reverse (120120221222012), we get a palindrome (330342343243033).

The spelling of 210222122021021 in words is "two hundred ten trillion, two hundred twenty-two billion, one hundred twenty-two million, twenty-one thousand, twenty-one".