1220112011012 has 12 divisors (see below), whose sum is σ = 2135206975440. Its totient is φ = 610052875176.

The previous prime is 1220112011009. The next prime is 1220112011023. The reversal of 1220112011012 is 2101102110221.

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, 244043 + ... + 1581069.

It is an arithmetic number, because the mean of its divisors is an integer number (177933914620).

Almost surely, 2^{1220112011012} is an apocalyptic number.

It is an amenable number.

1220112011012 is a deficient number, since it is larger than the sum of its proper divisors (915094964428).

1220112011012 is a wasteful number, since it uses less digits than its factorization.

1220112011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565170 (or 1565168 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1220112011012 its reverse (2101102110221), we get a palindrome (3321214121233).

The spelling of 1220112011012 in words is "one trillion, two hundred twenty billion, one hundred twelve million, eleven thousand, twelve".