210221110022 has 32 divisors (see below), whose sum is σ = 393262642944. Its totient is φ = 81878940000.

The previous prime is 210221110019. The next prime is 210221110039. The reversal of 210221110022 is 220011122012.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 210221109979 and 210221110006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290708 + ... + 710600.

It is an arithmetic number, because the mean of its divisors is an integer number (12289457592).

Almost surely, 2^210221110022 is an apocalyptic number.

210221110022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210221110022 is a deficient number, since it is larger than the sum of its proper divisors (183041532922).

210221110022 is a wasteful number, since it uses less digits than its factorization.

210221110022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423164.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210221110022 its reverse (220011122012), we get a palindrome (430232232034).

The spelling of 210221110022 in words is "two hundred ten billion, two hundred twenty-one million, one hundred ten thousand, twenty-two".