220222202002021 has 4 divisors (see below), whose sum is σ = 220222567276812. Its totient is φ = 220221836727232.

The previous prime is 220222202001899. The next prime is 220222202002051. The reversal of 220222202002021 is 120200202222022.

220222202002021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 129646438565121 + 90575763436900 = 11386239^2 + 9517130^2 .

It is a cyclic number.

It is not a de Polignac number, because 220222202002021 - 2¹⁷ = 220222201870949 is a prime.

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 220222202002021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220222202002051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181731556 + ... + 182939341.

It is an arithmetic number, because the mean of its divisors is an integer number (55055641819203).

Almost surely, 2^{220222202002021} is an apocalyptic number.

It is an amenable number.

220222202002021 is a deficient number, since it is larger than the sum of its proper divisors (365274791).

220222202002021 is an equidigital number, since it uses as much as digits as its factorization.

220222202002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365274790.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 220222202002021 its reverse (120200202222022), we get a palindrome (340422404224043).

The spelling of 220222202002021 in words is "two hundred twenty trillion, two hundred twenty-two billion, two hundred two million, two thousand, twenty-one".