1220011012 has 24 divisors (see below), whose sum is σ = 2334552192. Its totient is φ = 553255200.

The previous prime is 1220011003. The next prime is 1220011031. The reversal of 1220011012 is 2101100221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220011012.

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, 13203 + ... + 51130.

It is an arithmetic number, because the mean of its divisors is an integer number (97273008).

Almost surely, 2^1220011012 is an apocalyptic number.

It is an amenable number.

1220011012 is a deficient number, since it is larger than the sum of its proper divisors (1114541180).

1220011012 is a wasteful number, since it uses less digits than its factorization.

1220011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64779 (or 64777 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1220011012 is about 34928.6560291117. The cubic root of 1220011012 is about 1068.5329450707.

Adding to 1220011012 its reverse (2101100221), we get a palindrome (3321111233).

The spelling of 1220011012 in words is "one billion, two hundred twenty million, eleven thousand, twelve".