1222421012 has 24 divisors (see below), whose sum is σ = 2278970400. Its totient is φ = 572062176.

The previous prime is 1222420961. The next prime is 1222421087. The reversal of 1222421012 is 2101242221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90587 + ... + 103202.

It is an arithmetic number, because the mean of its divisors is an integer number (94957100).

Almost surely, 2^1222421012 is an apocalyptic number.

It is an amenable number.

1222421012 is a deficient number, since it is larger than the sum of its proper divisors (1056549388).

1222421012 is a wasteful number, since it uses less digits than its factorization.

1222421012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193895 (or 193893 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1222421012 is about 34963.1379026540. The cubic root of 1222421012 is about 1069.2360727687.

Adding to 1222421012 its reverse (2101242221), we get a palindrome (3323663233).

The spelling of 1222421012 in words is "one billion, two hundred twenty-two million, four hundred twenty-one thousand, twelve".