1220111201219 has 16 divisors (see below), whose sum is σ = 1229303040000. Its totient is φ = 1210946145696.

The previous prime is 1220111201213. The next prime is 1220111201237. The reversal of 1220111201219 is 9121021110221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1220111201219 - 2⁸ = 1220111200963 is a prime.

It is a super-2 number, since 2×1220111201219² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220111201194 and 1220111201203.

It is not an unprimeable number, because it can be changed into a prime (1220111201213) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 367612442 + ... + 367615760.

It is an arithmetic number, because the mean of its divisors is an integer number (76831440000).

Almost surely, 2^{1220111201219} is an apocalyptic number.

1220111201219 is a deficient number, since it is larger than the sum of its proper divisors (9191838781).

1220111201219 is a wasteful number, since it uses less digits than its factorization.

1220111201219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6554.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 1220111201219 in words is "one trillion, two hundred twenty billion, one hundred eleven million, two hundred one thousand, two hundred nineteen".