2220232221021 has 4 divisors (see below), whose sum is σ = 2960309628032. Its totient is φ = 1480154814012.

The previous prime is 2220232221017. The next prime is 2220232221047. The reversal of 2220232221021 is 1201222320222.

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 2220232221021 - 2² = 2220232221017 is a prime.

It is a super-2 number, since 2×2220232221021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220232271021) 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, 370038703501 + ... + 370038703506.

It is an arithmetic number, because the mean of its divisors is an integer number (740077407008).

Almost surely, 2^{2220232221021} is an apocalyptic number.

It is an amenable number.

2220232221021 is a deficient number, since it is larger than the sum of its proper divisors (740077407011).

2220232221021 is an equidigital number, since it uses as much as digits as its factorization.

2220232221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740077407010.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 2220232221021 its reverse (1201222320222), we get a palindrome (3421454541243).

The spelling of 2220232221021 in words is "two trillion, two hundred twenty billion, two hundred thirty-two million, two hundred twenty-one thousand, twenty-one".