2202212021021 has 4 divisors (see below), whose sum is σ = 2253426254112. Its totient is φ = 2150997787932.

The previous prime is 2202212020993. The next prime is 2202212021029. The reversal of 2202212021021 is 1201202122022.

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 2202212021021 - 2¹⁴ = 2202212004637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202212021029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25607116481 + ... + 25607116566.

It is an arithmetic number, because the mean of its divisors is an integer number (563356563528).

Almost surely, 2^{2202212021021} is an apocalyptic number.

It is an amenable number.

2202212021021 is a deficient number, since it is larger than the sum of its proper divisors (51214233091).

2202212021021 is an equidigital number, since it uses as much as digits as its factorization.

2202212021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51214233090.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2202212021021 its reverse (1201202122022), we get a palindrome (3403414143043).

The spelling of 2202212021021 in words is "two trillion, two hundred two billion, two hundred twelve million, twenty-one thousand, twenty-one".