210022122122221 has 8 divisors (see below), whose sum is σ = 213500409099264. Its totient is φ = 206544973899120.

The previous prime is 210022122122159. The next prime is 210022122122231. The reversal of 210022122122221 is 122221221220012.

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 210022122122221 - 2²⁵ = 210022088567789 is a prime.

It is a super-2 number, since 2×210022122122221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210022122122192 and 210022122122201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210022122122231) 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, 284316565 + ... + 285054298.

It is an arithmetic number, because the mean of its divisors is an integer number (26687551137408).

Almost surely, 2^{210022122122221} is an apocalyptic number.

It is an amenable number.

210022122122221 is a deficient number, since it is larger than the sum of its proper divisors (3478286977043).

210022122122221 is an equidigital number, since it uses as much as digits as its factorization.

210022122122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569376971.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 210022122122221 its reverse (122221221220012), we get a palindrome (332243343342233).

The spelling of 210022122122221 in words is "two hundred ten trillion, twenty-two billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-one".