1220021112199 has 2 divisors, whose sum is σ = 1220021112200. Its totient is φ = 1220021112198.

The previous prime is 1220021112197. The next prime is 1220021112221. The reversal of 1220021112199 is 9912111200221.

It is a weak prime.

It is an emirp because it is prime and its reverse (9912111200221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1220021112199 - 2¹ = 1220021112197 is a prime.

It is a super-2 number, since 2×1220021112199² (a number of 25 digits) contains 22 as substring.

Together with 1220021112197, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1220021112199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220021112197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610010556099 + 610010556100.

It is an arithmetic number, because the mean of its divisors is an integer number (610010556100).

Almost surely, 2^{1220021112199} is an apocalyptic number.

1220021112199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220021112199 is an equidigital number, since it uses as much as digits as its factorization.

1220021112199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 1220021112199 in words is "one trillion, two hundred twenty billion, twenty-one million, one hundred twelve thousand, one hundred ninety-nine".