1311102212101 has 16 divisors (see below), whose sum is σ = 1433737055808. Its totient is φ = 1189043856000.

The previous prime is 1311102212099. The next prime is 1311102212113. The reversal of 1311102212101 is 1012122011131.

It is a happy number.

It is not a de Polignac number, because 1311102212101 - 2¹ = 1311102212099 is a prime.

It is a super-2 number, since 2×1311102212101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311102212201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10485651 + ... + 10609951.

It is an arithmetic number, because the mean of its divisors is an integer number (89608565988).

Almost surely, 2^{1311102212101} is an apocalyptic number.

1311102212101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1311102212101 is a deficient number, since it is larger than the sum of its proper divisors (122634843707).

1311102212101 is a wasteful number, since it uses less digits than its factorization.

1311102212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126612.

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

Adding to 1311102212101 its reverse (1012122011131), we get a palindrome (2323224223232).

The spelling of 1311102212101 in words is "one trillion, three hundred eleven billion, one hundred two million, two hundred twelve thousand, one hundred one".