11202010221991 has 2 divisors, whose sum is σ = 11202010221992. Its totient is φ = 11202010221990.

The previous prime is 11202010221953. The next prime is 11202010222111. The reversal of 11202010221991 is 19912201020211.

11202010221991 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 11202010221991 - 2¹³ = 11202010213799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11202010224991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5601005110995 + 5601005110996.

It is an arithmetic number, because the mean of its divisors is an integer number (5601005110996).

Almost surely, 2^{11202010221991} is an apocalyptic number.

11202010221991 is a deficient number, since it is larger than the sum of its proper divisors (1).

11202010221991 is an equidigital number, since it uses as much as digits as its factorization.

11202010221991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 11202010221991 in words is "eleven trillion, two hundred two billion, ten million, two hundred twenty-one thousand, nine hundred ninety-one".