201202220221 has 16 divisors (see below), whose sum is σ = 204235129728. Its totient is φ = 198190080000.

The previous prime is 201202220209. The next prime is 201202220227. The reversal of 201202220221 is 122022202102.

It is a cyclic number.

It is not a de Polignac number, because 201202220221 - 2³⁵ = 166842481853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201202220195 and 201202220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201202220227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51443256 + ... + 51447166.

It is an arithmetic number, because the mean of its divisors is an integer number (12764695608).

Almost surely, 2^201202220221 is an apocalyptic number.

It is an amenable number.

201202220221 is a deficient number, since it is larger than the sum of its proper divisors (3032909507).

201202220221 is a wasteful number, since it uses less digits than its factorization.

201202220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6372.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 201202220221 its reverse (122022202102), we get a palindrome (323224422323).

The spelling of 201202220221 in words is "two hundred one billion, two hundred two million, two hundred twenty thousand, two hundred twenty-one".