1220021120199 has 16 divisors (see below), whose sum is σ = 1968437438208. Its totient is φ = 656145812352.

The previous prime is 1220021120191. The next prime is 1220021120221. The reversal of 1220021120199 is 9910211200221.

It is not a de Polignac number, because 1220021120199 - 2³ = 1220021120191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220021120191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1708712697 + ... + 1708713410.

It is an arithmetic number, because the mean of its divisors is an integer number (123027339888).

Almost surely, 2^{1220021120199} is an apocalyptic number.

1220021120199 is a deficient number, since it is larger than the sum of its proper divisors (748416318009).

1220021120199 is a wasteful number, since it uses less digits than its factorization.

1220021120199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417426134.

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 1220021120199 in words is "one trillion, two hundred twenty billion, twenty-one million, one hundred twenty thousand, one hundred ninety-nine".