201202112221 has 8 divisors (see below), whose sum is σ = 221666414688. Its totient is φ = 181100010000.

The previous prime is 201202112203. The next prime is 201202112249. The reversal of 201202112221 is 122211202102.

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 201202112221 - 2²⁷ = 201067894493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201202112195 and 201202112204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201202112021) 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, 90548895 + ... + 90551116.

It is an arithmetic number, because the mean of its divisors is an integer number (27708301836).

Almost surely, 2^201202112221 is an apocalyptic number.

It is an amenable number.

201202112221 is a deficient number, since it is larger than the sum of its proper divisors (20464302467).

201202112221 is a wasteful number, since it uses less digits than its factorization.

201202112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181100123.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201202112221 its reverse (122211202102), we get a palindrome (323413314323).

The spelling of 201202112221 in words is "two hundred one billion, two hundred two million, one hundred twelve thousand, two hundred twenty-one".