10111211001101 has 4 divisors (see below), whose sum is σ = 11555669715552. Its totient is φ = 8666752286652.

The previous prime is 10111211001043. The next prime is 10111211001119. The reversal of 10111211001101 is 10110011211101.

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 10111211001101 - 2²⁶ = 10111143892237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111211001161) 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, 722229357215 + ... + 722229357228.

It is an arithmetic number, because the mean of its divisors is an integer number (2888917428888).

Almost surely, 2^{10111211001101} is an apocalyptic number.

It is an amenable number.

10111211001101 is a deficient number, since it is larger than the sum of its proper divisors (1444458714451).

10111211001101 is an equidigital number, since it uses as much as digits as its factorization.

10111211001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444458714450.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 10111211001101 its reverse (10110011211101), we get a palindrome (20221222212202).

The spelling of 10111211001101 in words is "ten trillion, one hundred eleven billion, two hundred eleven million, one thousand, one hundred one".