222220112101 has 4 divisors (see below), whose sum is σ = 239313966892. Its totient is φ = 205126257312.

The previous prime is 222220112071. The next prime is 222220112113. The reversal of 222220112101 is 101211022222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101211022222 = 2 ⋅50605511111.

It can be written as a sum of positive squares in 2 ways, for example, as 144449404225 + 77770707876 = 380065^2 + 278874^2 .

It is a cyclic number.

It is not a de Polignac number, because 222220112101 - 2¹¹ = 222220110053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222220112141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8546927376 + ... + 8546927401.

It is an arithmetic number, because the mean of its divisors is an integer number (59828491723).

Almost surely, 2^222220112101 is an apocalyptic number.

It is an amenable number.

222220112101 is a deficient number, since it is larger than the sum of its proper divisors (17093854791).

222220112101 is a wasteful number, since it uses less digits than its factorization.

222220112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17093854790.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222220112101 its reverse (101211022222), we get a palindrome (323431134323).

The spelling of 222220112101 in words is "two hundred twenty-two billion, two hundred twenty million, one hundred twelve thousand, one hundred one".