111261137422444 has 12 divisors (see below), whose sum is σ = 194892602499000. Its totient is φ = 55577536708448.

The previous prime is 111261137422423. The next prime is 111261137422447. The reversal of 111261137422444 is 444224731162111.

It is a super-2 number, since 2×111261137422444² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111261137422444.

It is not an unprimeable number, because it can be changed into a prime (111261137422447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13257995974 + ... + 13258004365.

It is an arithmetic number, because the mean of its divisors is an integer number (16241050208250).

Almost surely, 2^{111261137422444} is an apocalyptic number.

It is an amenable number.

111261137422444 is a deficient number, since it is larger than the sum of its proper divisors (83631465076556).

111261137422444 is a wasteful number, since it uses less digits than its factorization.

111261137422444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26516001392 (or 26516001390 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

Adding to 111261137422444 its reverse (444224731162111), we get a palindrome (555485868584555).

The spelling of 111261137422444 in words is "one hundred eleven trillion, two hundred sixty-one billion, one hundred thirty-seven million, four hundred twenty-two thousand, four hundred forty-four".