12212031101 has 8 divisors (see below), whose sum is σ = 12890385600. Its totient is φ = 11569286124.

The previous prime is 12212031077. The next prime is 12212031113. The reversal of 12212031101 is 10113021221.

It is not a de Polignac number, because 12212031101 - 2⁶ = 12212031037 is a prime.

It is a super-2 number, since 2×12212031101² (a number of 21 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 (12212031131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 883361 + ... + 897078.

It is an arithmetic number, because the mean of its divisors is an integer number (1611298200).

Almost surely, 2^12212031101 is an apocalyptic number.

It is an amenable number.

12212031101 is a deficient number, since it is larger than the sum of its proper divisors (678354499).

12212031101 is an frugal number, since it uses more digits than its factorization.

12212031101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780496 (or 1780458 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12212031101 its reverse (10113021221), we get a palindrome (22325052322).

The spelling of 12212031101 in words is "twelve billion, two hundred twelve million, thirty-one thousand, one hundred one".