210222021020 has 48 divisors (see below), whose sum is σ = 487010815200. Its totient is φ = 75585438720.

The previous prime is 210222021019. The next prime is 210222021067. The reversal of 210222021020 is 20120222012.

It is a junction number, because it is equal to n+sod(n) for n = 210222020986 and 210222021004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5348705 + ... + 5387864.

It is an arithmetic number, because the mean of its divisors is an integer number (10146058650).

Almost surely, 2^210222021020 is an apocalyptic number.

210222021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210222021020 is an abundant number, since it is smaller than the sum of its proper divisors (276788794180).

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

210222021020 is a wasteful number, since it uses less digits than its factorization.

210222021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10736678 (or 10736676 counting only the distinct ones).

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

Adding to 210222021020 its reverse (20120222012), we get a palindrome (230342243032).

The spelling of 210222021020 in words is "two hundred ten billion, two hundred twenty-two million, twenty-one thousand, twenty".