1220112211099 has 2 divisors, whose sum is σ = 1220112211100. Its totient is φ = 1220112211098.

The previous prime is 1220112211081. The next prime is 1220112211103. The reversal of 1220112211099 is 9901122110221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220112211099 - 2²⁹ = 1219575340187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220112211099.

It is not a weakly prime, because it can be changed into another prime (1220112211079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610056105549 + 610056105550.

It is an arithmetic number, because the mean of its divisors is an integer number (610056105550).

Almost surely, 2^{1220112211099} is an apocalyptic number.

1220112211099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220112211099 is an equidigital number, since it uses as much as digits as its factorization.

1220112211099 is an evil number, because the sum of its binary digits is even.

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

The spelling of 1220112211099 in words is "one trillion, two hundred twenty billion, one hundred twelve million, two hundred eleven thousand, ninety-nine".