2122111202122 has 16 divisors (see below), whose sum is σ = 3194320187592. Its totient is φ = 1057339895040.

The previous prime is 2122111202119. The next prime is 2122111202147. The reversal of 2122111202122 is 2212021112212.

It can be written as a sum of positive squares in 4 ways, for example, as 1027930349161 + 1094180852961 = 1013869^2 + 1046031^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2122111202122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1518472 + ... + 2559292.

Almost surely, 2^{2122111202122} is an apocalyptic number.

2122111202122 is a deficient number, since it is larger than the sum of its proper divisors (1072208985470).

2122111202122 is a wasteful number, since it uses less digits than its factorization.

2122111202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044393.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2122111202122 its reverse (2212021112212), we get a palindrome (4334132314334).

The spelling of 2122111202122 in words is "two trillion, one hundred twenty-two billion, one hundred eleven million, two hundred two thousand, one hundred twenty-two".