1220522012 has 12 divisors (see below), whose sum is σ = 2136292200. Its totient is φ = 610152816.

The previous prime is 1220521963. The next prime is 1220522033. The reversal of 1220522012 is 2102250221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1739 + ... + 49437.

It is an arithmetic number, because the mean of its divisors is an integer number (178024350).

Almost surely, 2^1220522012 is an apocalyptic number.

It is an amenable number.

1220522012 is a deficient number, since it is larger than the sum of its proper divisors (915770188).

1220522012 is a wasteful number, since it uses less digits than its factorization.

1220522012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54100 (or 54098 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1220522012 is about 34935.9701740198. The cubic root of 1220522012 is about 1068.6821087843.

Adding to 1220522012 its reverse (2102250221), we get a palindrome (3322772233).

The spelling of 1220522012 in words is "one billion, two hundred twenty million, five hundred twenty-two thousand, twelve".