111014145431221 has 4 divisors (see below), whose sum is σ = 111634336188000. Its totient is φ = 110393954674444.

The previous prime is 111014145431209. The next prime is 111014145431237. The reversal of 111014145431221 is 122134541410111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111014145431221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111014145431921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310095378121 + ... + 310095378478.

It is an arithmetic number, because the mean of its divisors is an integer number (27908584047000).

Almost surely, 2^{111014145431221} is an apocalyptic number.

It is an amenable number.

111014145431221 is a deficient number, since it is larger than the sum of its proper divisors (620190756779).

111014145431221 is an equidigital number, since it uses as much as digits as its factorization.

111014145431221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620190756778.

The product of its (nonzero) digits is 3840, while the sum is 31.

Adding to 111014145431221 its reverse (122134541410111), we get a palindrome (233148686841332).

The spelling of 111014145431221 in words is "one hundred eleven trillion, fourteen billion, one hundred forty-five million, four hundred thirty-one thousand, two hundred twenty-one".