221022120122111 has 8 divisors (see below), whose sum is σ = 275560045866624. Its totient is φ = 172225028666520.

The previous prime is 221022120122093. The next prime is 221022120122117. The reversal of 221022120122111 is 111221021220122.

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 221022120122111 - 2²² = 221022115927807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221022120122117) 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, 1435208572145 + ... + 1435208572298.

It is an arithmetic number, because the mean of its divisors is an integer number (34445005733328).

Almost surely, 2^{221022120122111} is an apocalyptic number.

221022120122111 is a deficient number, since it is larger than the sum of its proper divisors (54537925744513).

221022120122111 is a wasteful number, since it uses less digits than its factorization.

221022120122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870417144461.

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

Adding to 221022120122111 its reverse (111221021220122), we get a palindrome (332243141342233).

The spelling of 221022120122111 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred twenty million, one hundred twenty-two thousand, one hundred eleven".