11121210002001 has 32 divisors (see below), whose sum is σ = 16734626334720. Its totient is φ = 6507507944000.

The previous prime is 11121210001987. The next prime is 11121210002027. The reversal of 11121210002001 is 10020001212111.

It is a cyclic number.

It is not a de Polignac number, because 11121210002001 - 2⁵ = 11121210001969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11121210002051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34243486 + ... + 34566728.

It is an arithmetic number, because the mean of its divisors is an integer number (522957072960).

Almost surely, 2^{11121210002001} is an apocalyptic number.

11121210002001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11121210002001 is a deficient number, since it is larger than the sum of its proper divisors (5613416332719).

11121210002001 is a wasteful number, since it uses less digits than its factorization.

11121210002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359237.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11121210002001 its reverse (10020001212111), we get a palindrome (21141211214112).

The spelling of 11121210002001 in words is "eleven trillion, one hundred twenty-one billion, two hundred ten million, two thousand, one".