1212022212 has 48 divisors (see below), whose sum is σ = 2877510720. Its totient is φ = 396983808.

The previous prime is 1212022211. The next prime is 1212022219. The reversal of 1212022212 is 2122202121.

It is a junction number, because it is equal to n+sod(n) for n = 1212022191 and 1212022200.

It is not an unprimeable number, because it can be changed into a prime (1212022211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245464 + ... + 250352.

It is an arithmetic number, because the mean of its divisors is an integer number (59948140).

Almost surely, 2^1212022212 is an apocalyptic number.

1212022212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212022212 is an abundant number, since it is smaller than the sum of its proper divisors (1665488508).

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

1212022212 is a wasteful number, since it uses less digits than its factorization.

1212022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5252 (or 5250 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1212022212 is about 34814.1093811116. The cubic root of 1212022212 is about 1066.1955354718.

Adding to 1212022212 its reverse (2122202121), we get a palindrome (3334224333).

The spelling of 1212022212 in words is "one billion, two hundred twelve million, twenty-two thousand, two hundred twelve".