202210212100221 has 32 divisors (see below), whose sum is σ = 322615527360000. Its totient is φ = 124436689504704.

The previous prime is 202210212100139. The next prime is 202210212100283. The reversal of 202210212100221 is 122001212012202.

It is a happy number.

202210212100221 is a `hidden beast` number, since 2 + 0 + 2 + 210 + 21 + 210 + 0 + 221 = 666.

It is not a de Polignac number, because 202210212100221 - 2¹⁴ = 202210212083837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202210212100194 and 202210212100203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202210212100291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166621980 + ... + 167831178.

It is an arithmetic number, because the mean of its divisors is an integer number (10081735230000).

Almost surely, 2^{202210212100221} is an apocalyptic number.

It is an amenable number.

202210212100221 is a deficient number, since it is larger than the sum of its proper divisors (120405315259779).

202210212100221 is a wasteful number, since it uses less digits than its factorization.

202210212100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685650 (or 1685644 counting only the distinct ones).

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

Adding to 202210212100221 its reverse (122001212012202), we get a palindrome (324211424112423).

The spelling of 202210212100221 in words is "two hundred two trillion, two hundred ten billion, two hundred twelve million, one hundred thousand, two hundred twenty-one".