1102002120091 has 16 divisors (see below), whose sum is σ = 1197516192768. Its totient is φ = 1010250102400.

The previous prime is 1102002120073. The next prime is 1102002120101. The reversal of 1102002120091 is 1900212002011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1102002120091 - 2¹⁵ = 1102002087323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1102002120031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5399875 + ... + 5600236.

It is an arithmetic number, because the mean of its divisors is an integer number (74844762048).

Almost surely, 2^{1102002120091} is an apocalyptic number.

1102002120091 is a deficient number, since it is larger than the sum of its proper divisors (95514072677).

1102002120091 is a wasteful number, since it uses less digits than its factorization.

1102002120091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11000282.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 1102002120091 in words is "one trillion, one hundred two billion, two million, one hundred twenty thousand, ninety-one".