222201212211101 has 4 divisors (see below), whose sum is σ = 223564409832192. Its totient is φ = 220838014590012.

The previous prime is 222201212211067. The next prime is 222201212211107. The reversal of 222201212211101 is 101112212102222.

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 a cyclic number.

It is not a de Polignac number, because 222201212211101 - 2³⁰ = 222200138469277 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 (222201212211107) 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, 681598810301 + ... + 681598810626.

It is an arithmetic number, because the mean of its divisors is an integer number (55891102458048).

Almost surely, 2^{222201212211101} is an apocalyptic number.

It is an amenable number.

222201212211101 is a deficient number, since it is larger than the sum of its proper divisors (1363197621091).

222201212211101 is a wasteful number, since it uses less digits than its factorization.

222201212211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363197621090.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222201212211101 its reverse (101112212102222), we get a palindrome (323313424313323).

The spelling of 222201212211101 in words is "two hundred twenty-two trillion, two hundred one billion, two hundred twelve million, two hundred eleven thousand, one hundred one".