2121323320112 has 40 divisors (see below), whose sum is σ = 4188886425360. Its totient is φ = 1040332550400.

The previous prime is 2121323320091. The next prime is 2121323320133. The reversal of 2121323320112 is 2110233231212.

It is an interprime number because it is at equal distance from previous prime (2121323320091) and next prime (2121323320133).

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, 2420339 + ... + 3178157.

It is an arithmetic number, because the mean of its divisors is an integer number (104722160634).

Almost surely, 2^{2121323320112} is an apocalyptic number.

It is an amenable number.

2121323320112 is a deficient number, since it is larger than the sum of its proper divisors (2067563105248).

2121323320112 is a wasteful number, since it uses less digits than its factorization.

2121323320112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761181 (or 761175 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2121323320112 its reverse (2110233231212), we get a palindrome (4231556551324).

The spelling of 2121323320112 in words is "two trillion, one hundred twenty-one billion, three hundred twenty-three million, three hundred twenty thousand, one hundred twelve".