201202102022221 has 64 divisors (see below), whose sum is σ = 234423495290880. Its totient is φ = 171289726755840.

The previous prime is 201202102022219. The next prime is 201202102022291. The reversal of 201202102022221 is 122220201202102.

It is a cyclic number.

It is not a de Polignac number, because 201202102022221 - 2¹ = 201202102022219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201202102022291) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11378269846 + ... + 11378287528.

It is an arithmetic number, because the mean of its divisors is an integer number (3662867113920).

Almost surely, 2^{201202102022221} is an apocalyptic number.

It is an amenable number.

201202102022221 is a deficient number, since it is larger than the sum of its proper divisors (33221393268659).

201202102022221 is a wasteful number, since it uses less digits than its factorization.

201202102022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20426.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 201202102022221 its reverse (122220201202102), we get a palindrome (323422303224323).

The spelling of 201202102022221 in words is "two hundred one trillion, two hundred two billion, one hundred two million, twenty-two thousand, two hundred twenty-one".