1220064612 has 24 divisors (see below), whose sum is σ = 3065803776. Its totient is φ = 375404448.

The previous prime is 1220064607. The next prime is 1220064631. The reversal of 1220064612 is 2164600221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3910308 + ... + 3910619.

It is an arithmetic number, because the mean of its divisors is an integer number (127741824).

Almost surely, 2^1220064612 is an apocalyptic number.

1220064612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220064612 is an abundant number, since it is smaller than the sum of its proper divisors (1845739164).

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

1220064612 is a wasteful number, since it uses less digits than its factorization.

1220064612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7820947 (or 7820945 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1220064612 is about 34929.4232989896. The cubic root of 1220064612 is about 1068.5485931609.

Adding to 1220064612 its reverse (2164600221), we get a palindrome (3384664833).

The spelling of 1220064612 in words is "one billion, two hundred twenty million, sixty-four thousand, six hundred twelve".