11002111002121 has 4 divisors (see below), whose sum is σ = 11002148606592. Its totient is φ = 11002073397652.

The previous prime is 11002111002109. The next prime is 11002111002149. The reversal of 11002111002121 is 12120011120011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11002111002121 - 2³⁷ = 10864672048649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11002211002121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18359905 + ... + 18949678.

It is an arithmetic number, because the mean of its divisors is an integer number (2750537151648).

Almost surely, 2^{11002111002121} is an apocalyptic number.

It is an amenable number.

11002111002121 is a deficient number, since it is larger than the sum of its proper divisors (37604471).

11002111002121 is an equidigital number, since it uses as much as digits as its factorization.

11002111002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37604470.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11002111002121 its reverse (12120011120011), we get a palindrome (23122122122132).

The spelling of 11002111002121 in words is "eleven trillion, two billion, one hundred eleven million, two thousand, one hundred twenty-one".