2110012020021 has 4 divisors (see below), whose sum is σ = 2813349360032. Its totient is φ = 1406674680012.

The previous prime is 2110012020007. The next prime is 2110012020029. The reversal of 2110012020021 is 1200202100112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2110012020021 - 2⁹ = 2110012019509 is a prime.

It is a super-3 number, since 3×2110012020021³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2110012019979 and 2110012020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110012020029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351668670001 + ... + 351668670006.

It is an arithmetic number, because the mean of its divisors is an integer number (703337340008).

Almost surely, 2^{2110012020021} is an apocalyptic number.

It is an amenable number.

2110012020021 is a deficient number, since it is larger than the sum of its proper divisors (703337340011).

2110012020021 is an equidigital number, since it uses as much as digits as its factorization.

2110012020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703337340010.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2110012020021 its reverse (1200202100112), we get a palindrome (3310214120133).

The spelling of 2110012020021 in words is "two trillion, one hundred ten billion, twelve million, twenty thousand, twenty-one".