202221020020087 has 2 divisors, whose sum is σ = 202221020020088. Its totient is φ = 202221020020086.

The previous prime is 202221020020073. The next prime is 202221020020157. The reversal of 202221020020087 is 780020020122202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202221020020087 - 2⁷ = 202221020019959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202221020020027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101110510010043 + 101110510010044.

It is an arithmetic number, because the mean of its divisors is an integer number (101110510010044).

Almost surely, 2^{202221020020087} is an apocalyptic number.

202221020020087 is a deficient number, since it is larger than the sum of its proper divisors (1).

202221020020087 is an equidigital number, since it uses as much as digits as its factorization.

202221020020087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 28.

Adding to 202221020020087 its reverse (780020020122202), we get a palindrome (982241040142289).

The spelling of 202221020020087 in words is "two hundred two trillion, two hundred twenty-one billion, twenty million, twenty thousand, eighty-seven".