2222222112101 has 4 divisors (see below), whose sum is σ = 2222394083712. Its totient is φ = 2222050140492.

The previous prime is 2222222112083. The next prime is 2222222112139. The reversal of 2222222112101 is 1012112222222.

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 2222222112101 - 2³⁴ = 2205042242917 is a prime.

It is a super-2 number, since 2×2222222112101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222222118101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85966421 + ... + 85992266.

It is an arithmetic number, because the mean of its divisors is an integer number (555598520928).

Almost surely, 2^{2222222112101} is an apocalyptic number.

It is an amenable number.

2222222112101 is a deficient number, since it is larger than the sum of its proper divisors (171971611).

2222222112101 is a wasteful number, since it uses less digits than its factorization.

2222222112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171971610.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2222222112101 its reverse (1012112222222), we get a palindrome (3234334334323).

The spelling of 2222222112101 in words is "two trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred twelve thousand, one hundred one".