11100210112921 has 2 divisors, whose sum is σ = 11100210112922. Its totient is φ = 11100210112920.

The previous prime is 11100210112889. The next prime is 11100210112993. The reversal of 11100210112921 is 12921101200111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10257697239696 + 842512873225 = 3202764^2 + 917885^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100210112921 - 2⁵ = 11100210112889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11100210112892 and 11100210112901.

It is not a weakly prime, because it can be changed into another prime (11100210110921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550105056460 + 5550105056461.

It is an arithmetic number, because the mean of its divisors is an integer number (5550105056461).

Almost surely, 2^{11100210112921} is an apocalyptic number.

It is an amenable number.

11100210112921 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100210112921 is an equidigital number, since it uses as much as digits as its factorization.

11100210112921 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 22.

The spelling of 11100210112921 in words is "eleven trillion, one hundred billion, two hundred ten million, one hundred twelve thousand, nine hundred twenty-one".