202220002120221 has 24 divisors (see below), whose sum is σ = 305000064008640. Its totient is φ = 128865282201216.

The previous prime is 202220002120219. The next prime is 202220002120361. The reversal of 202220002120221 is 122021200022202.

202220002120221 is a `hidden beast` number, since 202 + 2 + 200 + 0 + 21 + 20 + 221 = 666.

202220002120221 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202220002120221 - 2¹ = 202220002120219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202220002120194 and 202220002120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202220002120421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 327733491 + ... + 328349936.

It is an arithmetic number, because the mean of its divisors is an integer number (12708336000360).

Almost surely, 2^{202220002120221} is an apocalyptic number.

It is an amenable number.

202220002120221 is a deficient number, since it is larger than the sum of its proper divisors (102780061888419).

202220002120221 is a wasteful number, since it uses less digits than its factorization.

202220002120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656084945 (or 656084942 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 202220002120221 its reverse (122021200022202), we get a palindrome (324241202142423).

The spelling of 202220002120221 in words is "two hundred two trillion, two hundred twenty billion, two million, one hundred twenty thousand, two hundred twenty-one".