1122011212 has 72 divisors (see below), whose sum is σ = 2373290304. Its totient is φ = 462436128.

The previous prime is 1122011129. The next prime is 1122011243. The reversal of 1122011212 is 2121102211.

It is a junction number, because it is equal to n+sod(n) for n = 1122011192 and 1122011201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 563683 + ... + 565669.

Almost surely, 2^1122011212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122011212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1186645152).

1122011212 is an abundant number, since it is smaller than the sum of its proper divisors (1251279092).

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

1122011212 is a wasteful number, since it uses less digits than its factorization.

1122011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115 (or 2106 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1122011212 is about 33496.4358103963. The cubic root of 1122011212 is about 1039.1200680865.

Adding to 1122011212 its reverse (2121102211), we get a palindrome (3243113423).

Subtracting 1122011212 from its reverse (2121102211), we obtain a palindrome (999090999).

The spelling of 1122011212 in words is "one billion, one hundred twenty-two million, eleven thousand, two hundred twelve".