1101021022091 has 2 divisors, whose sum is σ = 1101021022092. Its totient is φ = 1101021022090.

The previous prime is 1101021022067. The next prime is 1101021022103. The reversal of 1101021022091 is 1902201201011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1101021022091 - 2⁶ = 1101021022027 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101021022291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550510511045 + 550510511046.

It is an arithmetic number, because the mean of its divisors is an integer number (550510511046).

Almost surely, 2^{1101021022091} is an apocalyptic number.

1101021022091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101021022091 is an equidigital number, since it uses as much as digits as its factorization.

1101021022091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 1101021022091 in words is "one trillion, one hundred one billion, twenty-one million, twenty-two thousand, ninety-one".