5222206021 has 2 divisors, whose sum is σ = 5222206022. Its totient is φ = 5222206020.

The previous prime is 5222206019. The next prime is 5222206103. The reversal of 5222206021 is 1206022225.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4766383521 + 455822500 = 69039^2 + 21350^2 .

It is a cyclic number.

It is not a de Polignac number, because 5222206021 - 2¹ = 5222206019 is a prime.

Together with 5222206019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 5222205983 and 5222206001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5222006021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2611103010 + 2611103011.

It is an arithmetic number, because the mean of its divisors is an integer number (2611103011).

Almost surely, 2^5222206021 is an apocalyptic number.

It is an amenable number.

5222206021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5222206021 is an equidigital number, since it uses as much as digits as its factorization.

5222206021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 5222206021 is about 72264.8325328441. The cubic root of 5222206021 is about 1734.9408269897.

Adding to 5222206021 its reverse (1206022225), we get a palindrome (6428228246).

The spelling of 5222206021 in words is "five billion, two hundred twenty-two million, two hundred six thousand, twenty-one".