211022102111221 has 8 divisors (see below), whose sum is σ = 211825024963200. Its totient is φ = 210219183482832.

The previous prime is 211022102111167. The next prime is 211022102111269. The reversal of 211022102111221 is 122111201220112.

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 211022102111221 - 2¹¹ = 211022102109173 is a prime.

It is a super-2 number, since 2×211022102111221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211022102111291) 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, 129890296 + ... + 131504878.

It is an arithmetic number, because the mean of its divisors is an integer number (26478128120400).

Almost surely, 2^{211022102111221} is an apocalyptic number.

It is an amenable number.

211022102111221 is a deficient number, since it is larger than the sum of its proper divisors (802922851979).

211022102111221 is a wasteful number, since it uses less digits than its factorization.

211022102111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111795.

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

Adding to 211022102111221 its reverse (122111201220112), we get a palindrome (333133303331333).

The spelling of 211022102111221 in words is "two hundred eleven trillion, twenty-two billion, one hundred two million, one hundred eleven thousand, two hundred twenty-one".