221233332122101 has 16 divisors (see below), whose sum is σ = 238516945406208. Its totient is φ = 203987678731200.

The previous prime is 221233332122071. The next prime is 221233332122107. The reversal of 221233332122101 is 101221233332122.

It is not a de Polignac number, because 221233332122101 - 2²³ = 221233323733493 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 221233332122101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221233332122107) 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, 888230755 + ... + 888479791.

It is an arithmetic number, because the mean of its divisors is an integer number (14907309087888).

Almost surely, 2^{221233332122101} is an apocalyptic number.

It is an amenable number.

221233332122101 is a deficient number, since it is larger than the sum of its proper divisors (17283613284107).

221233332122101 is a wasteful number, since it uses less digits than its factorization.

221233332122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324972.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 221233332122101 its reverse (101221233332122), we get a palindrome (322454565454223).

It can be divided in two parts, 221233332122 and 101, that multiplied together give a palindrome (22344566544322).

The spelling of 221233332122101 in words is "two hundred twenty-one trillion, two hundred thirty-three billion, three hundred thirty-two million, one hundred twenty-two thousand, one hundred one".