202210121210221 has 8 divisors (see below), whose sum is σ = 203480215412544. Its totient is φ = 200940732426720.

The previous prime is 202210121210213. The next prime is 202210121210249. The reversal of 202210121210221 is 122012121012202.

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 202210121210221 - 2³ = 202210121210213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202210121210291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175779595 + ... + 176926216.

It is an arithmetic number, because the mean of its divisors is an integer number (25435026926568).

Almost surely, 2^{202210121210221} is an apocalyptic number.

It is an amenable number.

202210121210221 is a deficient number, since it is larger than the sum of its proper divisors (1270094202323).

202210121210221 is a wasteful number, since it uses less digits than its factorization.

202210121210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352709411.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 202210121210221 its reverse (122012121012202), we get a palindrome (324222242222423).

The spelling of 202210121210221 in words is "two hundred two trillion, two hundred ten billion, one hundred twenty-one million, two hundred ten thousand, two hundred twenty-one".