210000222021 has 16 divisors (see below), whose sum is σ = 283845219840. Its totient is φ = 138088518000.

The previous prime is 210000222013. The next prime is 210000222137. The reversal of 210000222021 is 120222000012.

It is not a de Polignac number, because 210000222021 - 2³ = 210000222013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210000221988 and 210000222006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210000223021) 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, 1276251 + ... + 1431368.

It is an arithmetic number, because the mean of its divisors is an integer number (17740326240).

Almost surely, 2^210000222021 is an apocalyptic number.

It is an amenable number.

210000222021 is a deficient number, since it is larger than the sum of its proper divisors (73844997819).

210000222021 is a wasteful number, since it uses less digits than its factorization.

210000222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2707976.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 210000222021 its reverse (120222000012), we get a palindrome (330222222033).

The spelling of 210000222021 in words is "two hundred ten billion, two hundred twenty-two thousand, twenty-one".