111421241245452 has 24 divisors (see below), whose sum is σ = 260829746072896. Its totient is φ = 37019435200848.

The previous prime is 111421241245439. The next prime is 111421241245487. The reversal of 111421241245452 is 254542142124111.

It is a super-2 number, since 2×111421241245452² (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 111421241245452.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15122314618 + ... + 15122321985.

Almost surely, 2^{111421241245452} is an apocalyptic number.

111421241245452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111421241245452 is an abundant number, since it is smaller than the sum of its proper divisors (149408504827444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111421241245452 is a wasteful number, since it uses less digits than its factorization.

111421241245452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30244636917 (or 30244636915 counting only the distinct ones).

The product of its digits is 102400, while the sum is 39.

Adding to 111421241245452 its reverse (254542142124111), we get a palindrome (365963383369563).

The spelling of 111421241245452 in words is "one hundred eleven trillion, four hundred twenty-one billion, two hundred forty-one million, two hundred forty-five thousand, four hundred fifty-two".