2222002022621 has 2 divisors, whose sum is σ = 2222002022622. Its totient is φ = 2222002022620.

The previous prime is 2222002022579. The next prime is 2222002022641. The reversal of 2222002022621 is 1262202002222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1426006164025 + 795995858596 = 1194155^2 + 892186^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222002022621 - 2¹⁰ = 2222002021597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2222002022641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111001011310 + 1111001011311.

It is an arithmetic number, because the mean of its divisors is an integer number (1111001011311).

Almost surely, 2^{2222002022621} is an apocalyptic number.

It is an amenable number.

2222002022621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222002022621 is an equidigital number, since it uses as much as digits as its factorization.

2222002022621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 2222002022621 its reverse (1262202002222), we get a palindrome (3484204024843).

The spelling of 2222002022621 in words is "two trillion, two hundred twenty-two billion, two million, twenty-two thousand, six hundred twenty-one".