11020022221991 has 2 divisors, whose sum is σ = 11020022221992. Its totient is φ = 11020022221990.

The previous prime is 11020022221979. The next prime is 11020022222009. The reversal of 11020022221991 is 19912222002011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11020022221991 - 2²² = 11020018027687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11020022221921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510011110995 + 5510011110996.

It is an arithmetic number, because the mean of its divisors is an integer number (5510011110996).

Almost surely, 2^{11020022221991} is an apocalyptic number.

11020022221991 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020022221991 is an equidigital number, since it uses as much as digits as its factorization.

11020022221991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 11020022221991 in words is "eleven trillion, twenty billion, twenty-two million, two hundred twenty-one thousand, nine hundred ninety-one".