2101110222122 has 4 divisors (see below), whose sum is σ = 3151665333186. Its totient is φ = 1050555111060.

The previous prime is 2101110222041. The next prime is 2101110222139. The reversal of 2101110222122 is 2212220111012.

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

It can be written as a sum of positive squares in only one way, i.e., 2084815444321 + 16294777801 = 1443889^2 + 127651^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2101110222122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525277555529 + ... + 525277555532.

Almost surely, 2^{2101110222122} is an apocalyptic number.

2101110222122 is a deficient number, since it is larger than the sum of its proper divisors (1050555111064).

2101110222122 is a wasteful number, since it uses less digits than its factorization.

2101110222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050555111063.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2101110222122 its reverse (2212220111012), we get a palindrome (4313330333134).

It can be divided in two parts, 2101110 and 222122, that added together give a palindrome (2323232).

The spelling of 2101110222122 in words is "two trillion, one hundred one billion, one hundred ten million, two hundred twenty-two thousand, one hundred twenty-two".