1101312212 has 48 divisors (see below), whose sum is σ = 2587708032. Its totient is φ = 396074880.

The previous prime is 1101312167. The next prime is 1101312217. The reversal of 1101312212 is 2122131011.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101312217) 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, 133523 + ... + 141530.

It is an arithmetic number, because the mean of its divisors is an integer number (53910584).

Almost surely, 2^1101312212 is an apocalyptic number.

It is an amenable number.

1101312212 is an abundant number, since it is smaller than the sum of its proper divisors (1486395820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1101312212 is a wasteful number, since it uses less digits than its factorization.

1101312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275088 (or 275086 counting only the distinct ones).

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

The square root of 1101312212 is about 33186.0243476075. The cubic root of 1101312212 is about 1032.6904282079.

Adding to 1101312212 its reverse (2122131011), we get a palindrome (3223443223).

It can be divided in two parts, 1101 and 312212, that added together give a palindrome (313313).

The spelling of 1101312212 in words is "one billion, one hundred one million, three hundred twelve thousand, two hundred twelve".