2121000012122 has 16 divisors (see below), whose sum is σ = 3235242038400. Its totient is φ = 1042603056240.

The previous prime is 2121000012083. The next prime is 2121000012199. The reversal of 2121000012122 is 2212100001212.

It is a junction number, because it is equal to n+sod(n) for n = 2121000012097 and 2121000012106.

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, 4014422 + ... + 4511937.

It is an arithmetic number, because the mean of its divisors is an integer number (202202627400).

Almost surely, 2^{2121000012122} is an apocalyptic number.

2121000012122 is a deficient number, since it is larger than the sum of its proper divisors (1114242026278).

2121000012122 is a wasteful number, since it uses less digits than its factorization.

2121000012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8528461.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2121000012122 its reverse (2212100001212), we get a palindrome (4333100013334).

It can be divided in two parts, 212100001212 and 2, that multiplied together give a palindrome (424200002424).

The spelling of 2121000012122 in words is "two trillion, one hundred twenty-one billion, twelve thousand, one hundred twenty-two".