2100120121010 has 32 divisors (see below), whose sum is σ = 3864198942720. Its totient is φ = 821418115392.

The previous prime is 2100120120997. The next prime is 2100120121039. The reversal of 2100120121010 is 101210210012.

It is a junction number, because it is equal to n+sod(n) for n = 2100120120982 and 2100120121000.

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, 1544465 + ... + 2566244.

It is an arithmetic number, because the mean of its divisors is an integer number (120756216960).

Almost surely, 2^{2100120121010} is an apocalyptic number.

2100120121010 is a deficient number, since it is larger than the sum of its proper divisors (1764078821710).

2100120121010 is a wasteful number, since it uses less digits than its factorization.

2100120121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4111850.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2100120121010 its reverse (101210210012), we get a palindrome (2201330331022).

The spelling of 2100120121010 in words is "two trillion, one hundred billion, one hundred twenty million, one hundred twenty-one thousand, ten".