221122200101111 has 16 divisors (see below), whose sum is σ = 221853010186080. Its totient is φ = 220392826389120.

The previous prime is 221122200101041. The next prime is 221122200101113. The reversal of 221122200101111 is 111101002221122.

It is a cyclic number.

It is not a de Polignac number, because 221122200101111 - 2²⁶ = 221122132992247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221122200101111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221122200101113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1038430625 + ... + 1038643541.

It is an arithmetic number, because the mean of its divisors is an integer number (13865813136630).

Almost surely, 2^{221122200101111} is an apocalyptic number.

221122200101111 is a deficient number, since it is larger than the sum of its proper divisors (730810084969).

221122200101111 is a wasteful number, since it uses less digits than its factorization.

221122200101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216274.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 221122200101111 its reverse (111101002221122), we get a palindrome (332223202322233).

The spelling of 221122200101111 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, two hundred million, one hundred one thousand, one hundred eleven".