2210000221021 has 4 divisors (see below), whose sum is σ = 2236626729792. Its totient is φ = 2183373712252.

The previous prime is 2210000220943. The next prime is 2210000221049. The reversal of 2210000221021 is 1201220000122.

It is a happy number.

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 2210000221021 - 2⁷ = 2210000220893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2210000220992 and 2210000221010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210000221061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13313254261 + ... + 13313254426.

It is an arithmetic number, because the mean of its divisors is an integer number (559156682448).

Almost surely, 2^{2210000221021} is an apocalyptic number.

It is an amenable number.

2210000221021 is a deficient number, since it is larger than the sum of its proper divisors (26626508771).

2210000221021 is an equidigital number, since it uses as much as digits as its factorization.

2210000221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26626508770.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2210000221021 its reverse (1201220000122), we get a palindrome (3411220221143).

The spelling of 2210000221021 in words is "two trillion, two hundred ten billion, two hundred twenty-one thousand, twenty-one".