1222122012 has 96 divisors (see below), whose sum is σ = 2987228160. Its totient is φ = 388608000.

The previous prime is 1222122001. The next prime is 1222122017. The reversal of 1222122012 is 2102212221.

It is a junction number, because it is equal to n+sod(n) for n = 1222121982 and 1222122000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222122017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4868887 + ... + 4869137.

It is an arithmetic number, because the mean of its divisors is an integer number (31116960).

Almost surely, 2^1222122012 is an apocalyptic number.

1222122012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222122012 is an abundant number, since it is smaller than the sum of its proper divisors (1765106148).

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

1222122012 is a wasteful number, since it uses less digits than its factorization.

1222122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 489 counting only the distinct ones).

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

The square root of 1222122012 is about 34958.8617091575. The cubic root of 1222122012 is about 1069.1488884974.

Adding to 1222122012 its reverse (2102212221), we get a palindrome (3324334233).

The spelling of 1222122012 in words is "one billion, two hundred twenty-two million, one hundred twenty-two thousand, twelve".