111213255105452 has 6 divisors (see below), whose sum is σ = 194623196434548. Its totient is φ = 55606627552724.

The previous prime is 111213255105439. The next prime is 111213255105457. The reversal of 111213255105452 is 254501552312111.

It is a super-2 number, since 2×111213255105452² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111213255105457) 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, 13901656888178 + ... + 13901656888185.

It is an arithmetic number, because the mean of its divisors is an integer number (32437199405758).

Almost surely, 2^{111213255105452} is an apocalyptic number.

It is an amenable number.

111213255105452 is a deficient number, since it is larger than the sum of its proper divisors (83409941329096).

111213255105452 is a wasteful number, since it uses less digits than its factorization.

111213255105452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27803313776367 (or 27803313776365 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 38.

The spelling of 111213255105452 in words is "one hundred eleven trillion, two hundred thirteen billion, two hundred fifty-five million, one hundred five thousand, four hundred fifty-two".