2121001110122 has 64 divisors (see below), whose sum is σ = 3364509657600. Its totient is φ = 1001991444480.

The previous prime is 2121001110103. The next prime is 2121001110149. The reversal of 2121001110122 is 2210111001212.

It is a junction number, because it is equal to n+sod(n) for n = 2121001110097 and 2121001110106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55139048 + ... + 55177500.

It is an arithmetic number, because the mean of its divisors is an integer number (52570463400).

Almost surely, 2^{2121001110122} is an apocalyptic number.

2121001110122 is a deficient number, since it is larger than the sum of its proper divisors (1243508547478).

2121001110122 is a wasteful number, since it uses less digits than its factorization.

2121001110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38751.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2121001110122 its reverse (2210111001212), we get a palindrome (4331112111334).

The spelling of 2121001110122 in words is "two trillion, one hundred twenty-one billion, one million, one hundred ten thousand, one hundred twenty-two".