1101232331221 has 8 divisors (see below), whose sum is σ = 1201351963104. Its totient is φ = 1001113966320.

The previous prime is 1101232331183. The next prime is 1101232331231. The reversal of 1101232331221 is 1221332321011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1101232331221 - 2¹³ = 1101232323029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101232331192 and 1101232331201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101232331231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3158250 + ... + 3489556.

It is an arithmetic number, because the mean of its divisors is an integer number (150168995388).

Almost surely, 2^{1101232331221} is an apocalyptic number.

1101232331221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1101232331221 is a deficient number, since it is larger than the sum of its proper divisors (100119631883).

1101232331221 is a wasteful number, since it uses less digits than its factorization.

1101232331221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633491.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1101232331221 its reverse (1221332321011), we get a palindrome (2322564652232).

The spelling of 1101232331221 in words is "one trillion, one hundred one billion, two hundred thirty-two million, three hundred thirty-one thousand, two hundred twenty-one".