1222120012 has 6 divisors (see below), whose sum is σ = 2138710028. Its totient is φ = 611060004.

The previous prime is 1222120007. The next prime is 1222120013. The reversal of 1222120012 is 2100212221.

It is a happy number.

It is a super-3 number, since 3×1222120012³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222119974 and 1222120001.

It is not an unprimeable number, because it can be changed into a prime (1222120013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152764998 + ... + 152765005.

Almost surely, 2^1222120012 is an apocalyptic number.

It is an amenable number.

1222120012 is a deficient number, since it is larger than the sum of its proper divisors (916590016).

1222120012 is a wasteful number, since it uses less digits than its factorization.

1222120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305530007 (or 305530005 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1222120012 is about 34958.8331040955. The cubic root of 1222120012 is about 1069.1483052772.

Adding to 1222120012 its reverse (2100212221), we get a palindrome (3322332233).

The spelling of 1222120012 in words is "one billion, two hundred twenty-two million, one hundred twenty thousand, twelve".