2279446992121 has 4 divisors (see below), whose sum is σ = 2454789068452. Its totient is φ = 2104104915792.

The previous prime is 2279446992107. The next prime is 2279446992127. The reversal of 2279446992121 is 1212996449722.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1201610592400 + 1077836399721 = 1096180^2 + 1038189^2 .

It is a cyclic number.

It is not a de Polignac number, because 2279446992121 - 2²³ = 2279438603513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2279446992127) 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, 87671038146 + ... + 87671038171.

It is an arithmetic number, because the mean of its divisors is an integer number (613697267113).

Almost surely, 2^{2279446992121} is an apocalyptic number.

It is an amenable number.

2279446992121 is a deficient number, since it is larger than the sum of its proper divisors (175342076331).

2279446992121 is a wasteful number, since it uses less digits than its factorization.

2279446992121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175342076330.

The product of its digits is 7838208, while the sum is 58.

The spelling of 2279446992121 in words is "two trillion, two hundred seventy-nine billion, four hundred forty-six million, nine hundred ninety-two thousand, one hundred twenty-one".