111221394677440 has 112 divisors (see below), whose sum is σ = 264977266498560. Its totient is φ = 44466504903680.

The previous prime is 111221394677431. The next prime is 111221394677479. The reversal of 111221394677440 is 44776493122111.

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, 9685737939 + ... + 9685749421.

It is an arithmetic number, because the mean of its divisors is an integer number (2365868450880).

Almost surely, 2^{111221394677440} is an apocalyptic number.

111221394677440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111221394677440 is an abundant number, since it is smaller than the sum of its proper divisors (153755871821120).

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

111221394677440 is a wasteful number, since it uses less digits than its factorization.

111221394677440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23870 (or 23860 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 111221394677440 in words is "one hundred eleven trillion, two hundred twenty-one billion, three hundred ninety-four million, six hundred seventy-seven thousand, four hundred forty".