202221201211211 has 8 divisors (see below), whose sum is σ = 248887632260064. Its totient is φ = 159999192167040.

The previous prime is 202221201211207. The next prime is 202221201211213. The reversal of 202221201211211 is 112112102122202.

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 202221201211211 - 2² = 202221201211207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202221201211213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111105501070 + ... + 1111105501251.

It is an arithmetic number, because the mean of its divisors is an integer number (31110954032508).

Almost surely, 2^{202221201211211} is an apocalyptic number.

202221201211211 is a deficient number, since it is larger than the sum of its proper divisors (46666431048853).

202221201211211 is a wasteful number, since it uses less digits than its factorization.

202221201211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222211002341.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 202221201211211 its reverse (112112102122202), we get a palindrome (314333303333413).

The spelling of 202221201211211 in words is "two hundred two trillion, two hundred twenty-one billion, two hundred one million, two hundred eleven thousand, two hundred eleven".