2110211212021 has 4 divisors (see below), whose sum is σ = 2302048594944. Its totient is φ = 1918373829100.

The previous prime is 2110211212009. The next prime is 2110211212037. The reversal of 2110211212021 is 1202121120112.

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 a cyclic number.

It is not a de Polignac number, because 2110211212021 - 2²⁷ = 2110076994293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2110211211986 and 2110211212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110211212721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95918691445 + ... + 95918691466.

It is an arithmetic number, because the mean of its divisors is an integer number (575512148736).

Almost surely, 2^{2110211212021} is an apocalyptic number.

It is an amenable number.

2110211212021 is a deficient number, since it is larger than the sum of its proper divisors (191837382923).

2110211212021 is a wasteful number, since it uses less digits than its factorization.

2110211212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191837382922.

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

Adding to 2110211212021 its reverse (1202121120112), we get a palindrome (3312332332133).

It can be divided in two parts, 2110211 and 212021, that added together give a palindrome (2322232).

The spelling of 2110211212021 in words is "two trillion, one hundred ten billion, two hundred eleven million, two hundred twelve thousand, twenty-one".