202001120221 has 4 divisors (see below), whose sum is σ = 202105731744. Its totient is φ = 201896508700.

The previous prime is 202001120219. The next prime is 202001120249. The reversal of 202001120221 is 122021100202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122021100202 = 2 ⋅61010550101.

It is a cyclic number.

It is not a de Polignac number, because 202001120221 - 2¹ = 202001120219 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 (202001120261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52302865 + ... + 52306726.

It is an arithmetic number, because the mean of its divisors is an integer number (50526432936).

Almost surely, 2^202001120221 is an apocalyptic number.

It is an amenable number.

202001120221 is a deficient number, since it is larger than the sum of its proper divisors (104611523).

202001120221 is a wasteful number, since it uses less digits than its factorization.

202001120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104611522.

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

Adding to 202001120221 its reverse (122021100202), we get a palindrome (324022220423).

The spelling of 202001120221 in words is "two hundred two billion, one million, one hundred twenty thousand, two hundred twenty-one".