2112222099949 has 24 divisors (see below), whose sum is σ = 2308001446080. Its totient is φ = 1932018746112.

The previous prime is 2112222099947. The next prime is 2112222100031. The reversal of 2112222099949 is 9499902222112.

It is a happy number.

It is not a de Polignac number, because 2112222099949 - 2¹ = 2112222099947 is a prime.

It is a super-2 number, since 2×2112222099949² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112222099896 and 2112222099905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112222099947) 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, 96600792 + ... + 96622654.

It is an arithmetic number, because the mean of its divisors is an integer number (96166726920).

Almost surely, 2^{2112222099949} is an apocalyptic number.

It is an amenable number.

2112222099949 is a deficient number, since it is larger than the sum of its proper divisors (195779346131).

2112222099949 is a wasteful number, since it uses less digits than its factorization.

2112222099949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27061 (or 27048 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 52.

The spelling of 2112222099949 in words is "two trillion, one hundred twelve billion, two hundred twenty-two million, ninety-nine thousand, nine hundred forty-nine".