111212012200979 has 2 divisors, whose sum is σ = 111212012200980. Its totient is φ = 111212012200978.

The previous prime is 111212012200967. The next prime is 111212012201023. The reversal of 111212012200979 is 979002210212111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111212012200979 - 2¹⁶ = 111212012135443 is a prime.

It is a super-2 number, since 2×111212012200979² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111212012200579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55606006100489 + 55606006100490.

It is an arithmetic number, because the mean of its divisors is an integer number (55606006100490).

Almost surely, 2^{111212012200979} is an apocalyptic number.

111212012200979 is a deficient number, since it is larger than the sum of its proper divisors (1).

111212012200979 is an equidigital number, since it uses as much as digits as its factorization.

111212012200979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 38.

The spelling of 111212012200979 in words is "one hundred eleven trillion, two hundred twelve billion, twelve million, two hundred thousand, nine hundred seventy-nine".