111212244026445 has 16 divisors (see below), whose sum is σ = 178036772130432. Its totient is φ = 59280802918080.

The previous prime is 111212244026431. The next prime is 111212244026461. The reversal of 111212244026445 is 544620442212111.

It is not a de Polignac number, because 111212244026445 - 2¹⁸ = 111212243764301 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2024590122 + ... + 2024645051.

It is an arithmetic number, because the mean of its divisors is an integer number (11127298258152).

Almost surely, 2^{111212244026445} is an apocalyptic number.

111212244026445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111212244026445 is a deficient number, since it is larger than the sum of its proper divisors (66824528103987).

111212244026445 is a wasteful number, since it uses less digits than its factorization.

111212244026445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4049237012.

The product of its (nonzero) digits is 122880, while the sum is 39.

Adding to 111212244026445 its reverse (544620442212111), we get a palindrome (655832686238556).

The spelling of 111212244026445 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred forty-four million, twenty-six thousand, four hundred forty-five".