222221202112101 has 4 divisors (see below), whose sum is σ = 296294936149472. Its totient is φ = 148147468074732.

The previous prime is 222221202112051. The next prime is 222221202112153. The reversal of 222221202112101 is 101211202122222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 222221202112101 - 2³³ = 222212612177509 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 (222221202112181) 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, 37036867018681 + ... + 37036867018686.

It is an arithmetic number, because the mean of its divisors is an integer number (74073734037368).

Almost surely, 2^{222221202112101} is an apocalyptic number.

It is an amenable number.

222221202112101 is a deficient number, since it is larger than the sum of its proper divisors (74073734037371).

222221202112101 is an equidigital number, since it uses as much as digits as its factorization.

222221202112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74073734037370.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222221202112101 its reverse (101211202122222), we get a palindrome (323432404234323).

The spelling of 222221202112101 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two hundred two million, one hundred twelve thousand, one hundred one".