10021220200091 has 2 divisors, whose sum is σ = 10021220200092. Its totient is φ = 10021220200090.

The previous prime is 10021220200027. The next prime is 10021220200099. The reversal of 10021220200091 is 19000202212001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10021220200091 - 2⁶ = 10021220200027 is a prime.

It is not a weakly prime, because it can be changed into another prime (10021220200099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010610100045 + 5010610100046.

It is an arithmetic number, because the mean of its divisors is an integer number (5010610100046).

Almost surely, 2^{10021220200091} is an apocalyptic number.

10021220200091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021220200091 is an equidigital number, since it uses as much as digits as its factorization.

10021220200091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 10021220200091 its reverse (19000202212001), we get a palindrome (29021422412092).

The spelling of 10021220200091 in words is "ten trillion, twenty-one billion, two hundred twenty million, two hundred thousand, ninety-one".