4220365631 has 2 divisors, whose sum is σ = 4220365632. Its totient is φ = 4220365630.

The previous prime is 4220365619. The next prime is 4220365649. The reversal of 4220365631 is 1365630224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4220365631 - 2¹⁴ = 4220349247 is a prime.

It is a super-2 number, since 2×4220365631² = 35622972118652056322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4220365661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110182815 + 2110182816.

It is an arithmetic number, because the mean of its divisors is an integer number (2110182816).

Almost surely, 2^4220365631 is an apocalyptic number.

4220365631 is a deficient number, since it is larger than the sum of its proper divisors (1).

4220365631 is an equidigital number, since it uses as much as digits as its factorization.

4220365631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 4220365631 is about 64964.3412265529. The cubic root of 4220365631 is about 1616.0322591375.

Adding to 4220365631 its reverse (1365630224), we get a palindrome (5585995855).

The spelling of 4220365631 in words is "four billion, two hundred twenty million, three hundred sixty-five thousand, six hundred thirty-one".