2110101101021 has 2 divisors, whose sum is σ = 2110101101022. Its totient is φ = 2110101101020.

The previous prime is 2110101100993. The next prime is 2110101101063. The reversal of 2110101101021 is 1201011010112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1470083500900 + 640017600121 = 1212470^2 + 800011^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110101101021 - 2²² = 2110096906717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2110101100993 and 2110101101011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2110101101081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055050550510 + 1055050550511.

It is an arithmetic number, because the mean of its divisors is an integer number (1055050550511).

Almost surely, 2^{2110101101021} is an apocalyptic number.

It is an amenable number.

2110101101021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110101101021 is an equidigital number, since it uses as much as digits as its factorization.

2110101101021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2110101101021 its reverse (1201011010112), we get a palindrome (3311112111133).

Subtracting from 2110101101021 its reverse (1201011010112), we obtain a palindrome (909090090909).

It can be divided in two parts, 2110101 and 101021, that added together give a palindrome (2211122).

The spelling of 2110101101021 in words is "two trillion, one hundred ten billion, one hundred one million, one hundred one thousand, twenty-one".