202221121212211 has 8 divisors (see below), whose sum is σ = 207630163041840. Its totient is φ = 196844180521632.

The previous prime is 202221121212203. The next prime is 202221121212221. The reversal of 202221121212211 is 112212121122202.

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 202221121212211 - 2³ = 202221121212203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202221121212221) 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, 8025271996 + ... + 8025297193.

It is an arithmetic number, because the mean of its divisors is an integer number (25953770380230).

Almost surely, 2^{202221121212211} is an apocalyptic number.

202221121212211 is a deficient number, since it is larger than the sum of its proper divisors (5409041829629).

202221121212211 is a wasteful number, since it uses less digits than its factorization.

202221121212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16050569525.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 202221121212211 its reverse (112212121122202), we get a palindrome (314433242334413).

Subtracting from 202221121212211 its reverse (112212121122202), we obtain a palindrome (90009000090009).

The spelling of 202221121212211 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred twelve thousand, two hundred eleven".