10111111212001 has 4 divisors (see below), whose sum is σ = 10239099961600. Its totient is φ = 9983122462404.

The previous prime is 10111111211953. The next prime is 10111111212047. The reversal of 10111111212001 is 10021211111101.

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 10111111212001 - 2⁴¹ = 7912087956449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10111111213001) 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, 63994374681 + ... + 63994374838.

It is an arithmetic number, because the mean of its divisors is an integer number (2559774990400).

Almost surely, 2^{10111111212001} is an apocalyptic number.

It is an amenable number.

10111111212001 is a deficient number, since it is larger than the sum of its proper divisors (127988749599).

10111111212001 is an equidigital number, since it uses as much as digits as its factorization.

10111111212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127988749598.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 10111111212001 its reverse (10021211111101), we get a palindrome (20132322323102).

The spelling of 10111111212001 in words is "ten trillion, one hundred eleven billion, one hundred eleven million, two hundred twelve thousand, one".