1220111002012 has 24 divisors (see below), whose sum is σ = 2440255069280. Its totient is φ = 522897629760.

The previous prime is 1220111002001. The next prime is 1220111002031. The reversal of 1220111002012 is 2102001110221.

It is a super-3 number, since 3×1220111002012³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220111001983 and 1220111002001.

It is a congruent number.

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, 2168914 + ... + 2672902.

Almost surely, 2^{1220111002012} is an apocalyptic number.

It is an amenable number.

1220111002012 is an abundant number, since it is smaller than the sum of its proper divisors (1220144067268).

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

1220111002012 is a wasteful number, since it uses less digits than its factorization.

1220111002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590461 (or 590459 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1220111002012 its reverse (2102001110221), we get a palindrome (3322112112233).

The spelling of 1220111002012 in words is "one trillion, two hundred twenty billion, one hundred eleven million, two thousand, twelve".