202202121101221 has 8 divisors (see below), whose sum is σ = 203071916683584. Its totient is φ = 201332342402400.

The previous prime is 202202121101219. The next prime is 202202121101269. The reversal of 202202121101221 is 122101121202202.

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 202202121101221 - 2¹ = 202202121101219 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 (202202121141221) 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 7 ways as a sum of consecutive naturals, for example, 20083546 + ... + 28420996.

It is an arithmetic number, because the mean of its divisors is an integer number (25383989585448).

Almost surely, 2^{202202121101221} is an apocalyptic number.

It is an amenable number.

202202121101221 is a deficient number, since it is larger than the sum of its proper divisors (869795582363).

202202121101221 is a wasteful number, since it uses less digits than its factorization.

202202121101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8441771.

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

Adding to 202202121101221 its reverse (122101121202202), we get a palindrome (324303242303423).

The spelling of 202202121101221 in words is "two hundred two trillion, two hundred two billion, one hundred twenty-one million, one hundred one thousand, two hundred twenty-one".