2101222022122 has 16 divisors (see below), whose sum is σ = 3194638741800. Its totient is φ = 1036426622400.

The previous prime is 2101222022111. The next prime is 2101222022147. The reversal of 2101222022122 is 2212202221012.

It can be written as a sum of positive squares in 4 ways, for example, as 2012905475361 + 88316546761 = 1418769^2 + 297181^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2101222022122.

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, 20995129 + ... + 21094972.

Almost surely, 2^{2101222022122} is an apocalyptic number.

2101222022122 is a deficient number, since it is larger than the sum of its proper divisors (1093416719678).

2101222022122 is a wasteful number, since it uses less digits than its factorization.

2101222022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42090441.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2101222022122 its reverse (2212202221012), we get a palindrome (4313424243134).

The spelling of 2101222022122 in words is "two trillion, one hundred one billion, two hundred twenty-two million, twenty-two thousand, one hundred twenty-two".