1102202120491 has 2 divisors, whose sum is σ = 1102202120492. Its totient is φ = 1102202120490.

The previous prime is 1102202120471. The next prime is 1102202120597. The reversal of 1102202120491 is 1940212022011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1102202120491 - 2⁷ = 1102202120363 is a prime.

It is not a weakly prime, because it can be changed into another prime (1102202120471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551101060245 + 551101060246.

It is an arithmetic number, because the mean of its divisors is an integer number (551101060246).

Almost surely, 2^{1102202120491} is an apocalyptic number.

1102202120491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102202120491 is an equidigital number, since it uses as much as digits as its factorization.

1102202120491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 1102202120491 in words is "one trillion, one hundred two billion, two hundred two million, one hundred twenty thousand, four hundred ninety-one".