221122010211211 has 8 divisors (see below), whose sum is σ = 221248270632960. Its totient is φ = 220995778672872.

The previous prime is 221122010211191. The next prime is 221122010211307. The reversal of 221122010211211 is 112112010221122.

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 221122010211211 - 2⁷ = 221122010211083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221122010211511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8104150 + ... + 22537108.

It is an arithmetic number, because the mean of its divisors is an integer number (27656033829120).

Almost surely, 2^{221122010211211} is an apocalyptic number.

221122010211211 is a deficient number, since it is larger than the sum of its proper divisors (126260421749).

221122010211211 is a wasteful number, since it uses less digits than its factorization.

221122010211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14441705.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 221122010211211 its reverse (112112010221122), we get a palindrome (333234020432333).

The spelling of 221122010211211 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, ten million, two hundred eleven thousand, two hundred eleven".