2222200231021 has 4 divisors (see below), whose sum is σ = 2222258906812. Its totient is φ = 2222141555232.

The previous prime is 2222200231019. The next prime is 2222200231129. The reversal of 2222200231021 is 1201320022222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 557390655396 + 1664809575625 = 746586^2 + 1290275^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222200231021 - 2¹ = 2222200231019 is a prime.

It is a super-3 number, since 3×2222200231021³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2222200231021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222200231001) 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, 29281050 + ... + 29356843.

It is an arithmetic number, because the mean of its divisors is an integer number (555564726703).

Almost surely, 2^{2222200231021} is an apocalyptic number.

It is an amenable number.

2222200231021 is a deficient number, since it is larger than the sum of its proper divisors (58675791).

2222200231021 is an equidigital number, since it uses as much as digits as its factorization.

2222200231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58675790.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 2222200231021 its reverse (1201320022222), we get a palindrome (3423520253243).

The spelling of 2222200231021 in words is "two trillion, two hundred twenty-two billion, two hundred million, two hundred thirty-one thousand, twenty-one".