202221000121 has 8 divisors (see below), whose sum is σ = 232772375360. Its totient is φ = 172085290128.

The previous prime is 202221000073. The next prime is 202221000181. The reversal of 202221000121 is 121000122202.

It is a happy number.

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 202221000121 - 2¹⁹ = 202220475833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202221000181) 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, 103915266 + ... + 103917211.

It is an arithmetic number, because the mean of its divisors is an integer number (29096546920).

Almost surely, 2^202221000121 is an apocalyptic number.

It is an amenable number.

202221000121 is a deficient number, since it is larger than the sum of its proper divisors (30551375239).

202221000121 is a wasteful number, since it uses less digits than its factorization.

202221000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207832623.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202221000121 its reverse (121000122202), we get a palindrome (323221122323).

The spelling of 202221000121 in words is "two hundred two billion, two hundred twenty-one million, one hundred twenty-one", and thus it is an aban number.