11101231212001 has 32 divisors (see below), whose sum is σ = 12870984499200. Its totient is φ = 9378496700160.

The previous prime is 11101231211971. The next prime is 11101231212011. The reversal of 11101231212001 is 10021213210111.

It is a happy number.

It is not a de Polignac number, because 11101231212001 - 2²⁵ = 11101197657569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11101231212011) 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, 135885396 + ... + 135967066.

It is an arithmetic number, because the mean of its divisors is an integer number (402218265600).

Almost surely, 2^{11101231212001} is an apocalyptic number.

It is an amenable number.

11101231212001 is a deficient number, since it is larger than the sum of its proper divisors (1769753287199).

11101231212001 is a wasteful number, since it uses less digits than its factorization.

11101231212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82749.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 11101231212001 its reverse (10021213210111), we get a palindrome (21122444422112).

The spelling of 11101231212001 in words is "eleven trillion, one hundred one billion, two hundred thirty-one million, two hundred twelve thousand, one".