222100111100101 has 24 divisors (see below), whose sum is σ = 254669588554824. Its totient is φ = 192937827962880.

The previous prime is 222100111100093. The next prime is 222100111100107. The reversal of 222100111100101 is 101001111001222.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 167511671316900 + 54588439783201 = 12942630^2 + 7388399^2 .

It is not a de Polignac number, because 222100111100101 - 2³ = 222100111100093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222100111100107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27388525 + ... + 34559101.

It is an arithmetic number, because the mean of its divisors is an integer number (10611232856451).

Almost surely, 2^{222100111100101} is an apocalyptic number.

It is an amenable number.

222100111100101 is a deficient number, since it is larger than the sum of its proper divisors (32569477454723).

222100111100101 is a wasteful number, since it uses less digits than its factorization.

222100111100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7181401 (or 7181388 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 222100111100101 its reverse (101001111001222), we get a palindrome (323101222101323).

The spelling of 222100111100101 in words is "two hundred twenty-two trillion, one hundred billion, one hundred eleven million, one hundred thousand, one hundred one".