210022200122121 has 32 divisors (see below), whose sum is σ = 311380994119680. Its totient is φ = 139908159031248.

The previous prime is 210022200122093. The next prime is 210022200122167. The reversal of 210022200122121 is 121221002220012.

It is a happy number.

It is not a de Polignac number, because 210022200122121 - 2⁶ = 210022200122057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210022200122094 and 210022200122103.

It is not an unprimeable number, because it can be changed into a prime (210022200129121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1660361940 + ... + 1660488426.

It is an arithmetic number, because the mean of its divisors is an integer number (9730656066240).

Almost surely, 2^{210022200122121} is an apocalyptic number.

It is an amenable number.

210022200122121 is a deficient number, since it is larger than the sum of its proper divisors (101358793997559).

210022200122121 is a wasteful number, since it uses less digits than its factorization.

210022200122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172850 (or 172844 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210022200122121 its reverse (121221002220012), we get a palindrome (331243202342133).

The spelling of 210022200122121 in words is "two hundred ten trillion, twenty-two billion, two hundred million, one hundred twenty-two thousand, one hundred twenty-one".