2110021100121 has 16 divisors (see below), whose sum is σ = 3099508947648. Its totient is φ = 1266139272000.

The previous prime is 2110021100107. The next prime is 2110021100123. The reversal of 2110021100121 is 1210011200112.

It is not a de Polignac number, because 2110021100121 - 2¹³ = 2110021091929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2110021100097 and 2110021100106.

It is not an unprimeable number, because it can be changed into a prime (2110021100123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316531486 + ... + 316538151.

It is an arithmetic number, because the mean of its divisors is an integer number (193719309228).

Almost surely, 2^{2110021100121} is an apocalyptic number.

It is an amenable number.

2110021100121 is a deficient number, since it is larger than the sum of its proper divisors (989487847527).

2110021100121 is a wasteful number, since it uses less digits than its factorization.

2110021100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633069752.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2110021100121 its reverse (1210011200112), we get a palindrome (3320032300233).

Subtracting from 2110021100121 its reverse (1210011200112), we obtain a palindrome (900009900009).

The spelling of 2110021100121 in words is "two trillion, one hundred ten billion, twenty-one million, one hundred thousand, one hundred twenty-one".