111211225211347 has 2 divisors, whose sum is σ = 111211225211348. Its totient is φ = 111211225211346.

The previous prime is 111211225211263. The next prime is 111211225211353. The reversal of 111211225211347 is 743112522112111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111211225211347 - 2³⁵ = 111176865472979 is a prime.

It is a super-2 number, since 2×111211225211347² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111211225221347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55605612605673 + 55605612605674.

It is an arithmetic number, because the mean of its divisors is an integer number (55605612605674).

Almost surely, 2^{111211225211347} is an apocalyptic number.

111211225211347 is a deficient number, since it is larger than the sum of its proper divisors (1).

111211225211347 is an equidigital number, since it uses as much as digits as its factorization.

111211225211347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 34.

Adding to 111211225211347 its reverse (743112522112111), we get a palindrome (854323747323458).

The spelling of 111211225211347 in words is "one hundred eleven trillion, two hundred eleven billion, two hundred twenty-five million, two hundred eleven thousand, three hundred forty-seven".