22100210121 has 8 divisors (see below), whose sum is σ = 32145760224. Its totient is φ = 13394066720.

The previous prime is 22100210087. The next prime is 22100210179. The reversal of 22100210121 is 12101200122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22100210121 - 2¹⁰ = 22100209097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22100210097 and 22100210106.

It is not an unprimeable number, because it can be changed into a prime (22100210021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334851636 + ... + 334851701.

It is an arithmetic number, because the mean of its divisors is an integer number (4018220028).

Almost surely, 2^22100210121 is an apocalyptic number.

It is an amenable number.

22100210121 is a deficient number, since it is larger than the sum of its proper divisors (10045550103).

22100210121 is a wasteful number, since it uses less digits than its factorization.

22100210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669703351.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22100210121 its reverse (12101200122), we get a palindrome (34201410243).

Subtracting from 22100210121 its reverse (12101200122), we obtain a palindrome (9999009999).

It can be divided in two parts, 22100 and 210121, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 22100210121 in words is "twenty-two billion, one hundred million, two hundred ten thousand, one hundred twenty-one".