10212020200091 has 2 divisors, whose sum is σ = 10212020200092. Its totient is φ = 10212020200090.

The previous prime is 10212020200061. The next prime is 10212020200133. The reversal of 10212020200091 is 19000202021201.

It is a happy number.

10212020200091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10212020200091 - 2⁶ = 10212020200027 is a prime.

It is not a weakly prime, because it can be changed into another prime (10212020200021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106010100045 + 5106010100046.

It is an arithmetic number, because the mean of its divisors is an integer number (5106010100046).

Almost surely, 2^{10212020200091} is an apocalyptic number.

10212020200091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212020200091 is an equidigital number, since it uses as much as digits as its factorization.

10212020200091 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 10212020200091 its reverse (19000202021201), we get a palindrome (29212222221292).

The spelling of 10212020200091 in words is "ten trillion, two hundred twelve billion, twenty million, two hundred thousand, ninety-one".