111434040221420 has 48 divisors (see below), whose sum is σ = 267450862486080. Its totient is φ = 38204647225344.

The previous prime is 111434040221419. The next prime is 111434040221447. The reversal of 111434040221420 is 24122040434111.

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, 9535949 + ... + 17714468.

It is an arithmetic number, because the mean of its divisors is an integer number (5571892968460).

Almost surely, 2^{111434040221420} is an apocalyptic number.

111434040221420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111434040221420 is an abundant number, since it is smaller than the sum of its proper divisors (156016822264660).

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

111434040221420 is a wasteful number, since it uses less digits than its factorization.

111434040221420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27279642 (or 27279640 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 111434040221420 its reverse (24122040434111), we get a palindrome (135556080655531).

The spelling of 111434040221420 in words is "one hundred eleven trillion, four hundred thirty-four billion, forty million, two hundred twenty-one thousand, four hundred twenty".