2121101012104 has 64 divisors (see below), whose sum is σ = 4045834915200. Its totient is φ = 1042318877184.

The previous prime is 2121101012081. The next prime is 2121101012113. The reversal of 2121101012104 is 4012101011212.

It is a super-2 number, since 2×2121101012104² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453321237 + ... + 453325915.

It is an arithmetic number, because the mean of its divisors is an integer number (63216170550).

Almost surely, 2^{2121101012104} is an apocalyptic number.

It is an amenable number.

2121101012104 is a deficient number, since it is larger than the sum of its proper divisors (1924733903096).

2121101012104 is a wasteful number, since it uses less digits than its factorization.

2121101012104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7342 (or 7338 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2121101012104 its reverse (4012101011212), we get a palindrome (6133202023316).

The spelling of 2121101012104 in words is "two trillion, one hundred twenty-one billion, one hundred one million, twelve thousand, one hundred four".