1220111110002 has 32 divisors (see below), whose sum is σ = 2508314906304. Its totient is φ = 395373700800.

The previous prime is 1220111109923. The next prime is 1220111110019. The reversal of 1220111110002 is 2000111110221.

It is a super-2 number, since 2×1220111110002² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220111110002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2086749 + ... + 2606672.

It is an arithmetic number, because the mean of its divisors is an integer number (78384840822).

Almost surely, 2^{1220111110002} is an apocalyptic number.

1220111110002 is an abundant number, since it is smaller than the sum of its proper divisors (1288203796302).

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

1220111110002 is a wasteful number, since it uses less digits than its factorization.

1220111110002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694634.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1220111110002 its reverse (2000111110221), we get a palindrome (3220222220223).

The spelling of 1220111110002 in words is "one trillion, two hundred twenty billion, one hundred eleven million, one hundred ten thousand, two".