2121000022112 has 48 divisors (see below), whose sum is σ = 4319650363392. Its totient is φ = 1024092485760.

The previous prime is 2121000022069. The next prime is 2121000022121. The reversal of 2121000022112 is 2112200001212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1825928 + ... + 2752455.

It is an arithmetic number, because the mean of its divisors is an integer number (89992715904).

Almost surely, 2^{2121000022112} is an apocalyptic number.

It is an amenable number.

2121000022112 is an abundant number, since it is smaller than the sum of its proper divisors (2198650341280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121000022112 is a wasteful number, since it uses less digits than its factorization.

2121000022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4578891 (or 4578883 counting only the distinct ones).

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

Adding to 2121000022112 its reverse (2112200001212), we get a palindrome (4233200023324).

The spelling of 2121000022112 in words is "two trillion, one hundred twenty-one billion, twenty-two thousand, one hundred twelve".