2122100040056 has 16 divisors (see below), whose sum is σ = 3979018969800. Its totient is φ = 1061028314784.

The previous prime is 2122100040043. The next prime is 2122100040077. The reversal of 2122100040056 is 6500400012212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2293826 + ... + 3083153.

Almost surely, 2^{2122100040056} is an apocalyptic number.

It is an amenable number.

2122100040056 is a deficient number, since it is larger than the sum of its proper divisors (1856918929744).

2122100040056 is a wasteful number, since it uses less digits than its factorization.

2122100040056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426318 (or 5426314 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 2122100040056 its reverse (6500400012212), we get a palindrome (8622500052268).

The spelling of 2122100040056 in words is "two trillion, one hundred twenty-two billion, one hundred million, forty thousand, fifty-six".