11002001112121 has 2 divisors, whose sum is σ = 11002001112122. Its totient is φ = 11002001112120.

The previous prime is 11002001112107. The next prime is 11002001112203. The reversal of 11002001112121 is 12121110020011.

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., 9106392582400 + 1895608529721 = 3017680^2 + 1376811^2 .

It is an emirp because it is prime and its reverse (12121110020011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11002001112121 - 2¹⁹ = 11002000587833 is a prime.

It is a super-2 number, since 2×11002001112121² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11002001113121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5501000556060 + 5501000556061.

It is an arithmetic number, because the mean of its divisors is an integer number (5501000556061).

Almost surely, 2^{11002001112121} is an apocalyptic number.

It is an amenable number.

11002001112121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11002001112121 is an equidigital number, since it uses as much as digits as its factorization.

11002001112121 is an evil number, because the sum of its binary digits is even.

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

Adding to 11002001112121 its reverse (12121110020011), we get a palindrome (23123111132132).

It can be divided in two parts, 110020011 and 12121, that multiplied together give a palindrome (1333552553331).

The spelling of 11002001112121 in words is "eleven trillion, two billion, one million, one hundred twelve thousand, one hundred twenty-one".