1111401221232 has 20 divisors (see below), whose sum is σ = 2871119821640. Its totient is φ = 370467073728.

The previous prime is 1111401221213. The next prime is 1111401221233. The reversal of 1111401221232 is 2321221041111.

It is a junction number, because it is equal to n+sod(n) for n = 1111401221199 and 1111401221208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111401221233) 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, 11577096007 + ... + 11577096102.

It is an arithmetic number, because the mean of its divisors is an integer number (143555991082).

Almost surely, 2^{1111401221232} is an apocalyptic number.

1111401221232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1111401221232 is an abundant number, since it is smaller than the sum of its proper divisors (1759718600408).

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

1111401221232 is a wasteful number, since it uses less digits than its factorization.

1111401221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23154192120 (or 23154192114 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 1111401221232 its reverse (2321221041111), we get a palindrome (3432622262343).

The spelling of 1111401221232 in words is "one trillion, one hundred eleven billion, four hundred one million, two hundred twenty-one thousand, two hundred thirty-two".