111020012212099 has 2 divisors, whose sum is σ = 111020012212100. Its totient is φ = 111020012212098.

The previous prime is 111020012212009. The next prime is 111020012212127. The reversal of 111020012212099 is 990212210020111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111020012212099 - 2¹⁹ = 111020011687811 is a prime.

It is a super-2 number, since 2×111020012212099² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111020012212099.

It is not a weakly prime, because it can be changed into another prime (111020012212009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510006106049 + 55510006106050.

It is an arithmetic number, because the mean of its divisors is an integer number (55510006106050).

Almost surely, 2^{111020012212099} is an apocalyptic number.

111020012212099 is a deficient number, since it is larger than the sum of its proper divisors (1).

111020012212099 is an equidigital number, since it uses as much as digits as its factorization.

111020012212099 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.

It can be divided in two parts, 111020012 and 212099, that added together give a palindrome (111232111).

The spelling of 111020012212099 in words is "one hundred eleven trillion, twenty billion, twelve million, two hundred twelve thousand, ninety-nine".