1220200011122 has 8 divisors (see below), whose sum is σ = 1832135827116. Its totient is φ = 609488068752.

The previous prime is 1220200011113. The next prime is 1220200011169. The reversal of 1220200011122 is 2211100020221.

It can be written as a sum of positive squares in 2 ways, for example, as 1044052760521 + 176147250601 = 1021789^2 + 419699^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1220200011097 and 1220200011106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305965913 + ... + 305969900.

Almost surely, 2^{1220200011122} is an apocalyptic number.

1220200011122 is a deficient number, since it is larger than the sum of its proper divisors (611935815994).

1220200011122 is an equidigital number, since it uses as much as digits as its factorization.

1220200011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611936812.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220200011122 its reverse (2211100020221), we get a palindrome (3431300031343).

Subtracting 1220200011122 from its reverse (2211100020221), we obtain a palindrome (990900009099).

The spelling of 1220200011122 in words is "one trillion, two hundred twenty billion, two hundred million, eleven thousand, one hundred twenty-two".