111212020111147 has 2 divisors, whose sum is σ = 111212020111148. Its totient is φ = 111212020111146.

The previous prime is 111212020111067. The next prime is 111212020111187. The reversal of 111212020111147 is 741111020212111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111212020111147 - 2²⁷ = 111211885893419 is a prime.

It is a super-2 number, since 2×111212020111147² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111212020111187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55606010055573 + 55606010055574.

It is an arithmetic number, because the mean of its divisors is an integer number (55606010055574).

Almost surely, 2^{111212020111147} is an apocalyptic number.

111212020111147 is a deficient number, since it is larger than the sum of its proper divisors (1).

111212020111147 is an equidigital number, since it uses as much as digits as its factorization.

111212020111147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 25.

Adding to 111212020111147 its reverse (741111020212111), we get a palindrome (852323040323258).

The spelling of 111212020111147 in words is "one hundred eleven trillion, two hundred twelve billion, twenty million, one hundred eleven thousand, one hundred forty-seven".