1100213032221 has 56 divisors (see below), whose sum is σ = 1753763654016. Its totient is φ = 688347110880.

The previous prime is 1100213032207. The next prime is 1100213032229. The reversal of 1100213032221 is 1222303120011.

1100213032221 is a `hidden beast` number, since 110 + 0 + 213 + 0 + 322 + 21 = 666.

It is not a de Polignac number, because 1100213032221 - 2¹¹ = 1100213030173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100213032194 and 1100213032203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100213032229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 269616 + ... + 1507686.

Almost surely, 2^{1100213032221} is an apocalyptic number.

It is an amenable number.

1100213032221 is a deficient number, since it is larger than the sum of its proper divisors (653550621795).

1100213032221 is an equidigital number, since it uses as much as digits as its factorization.

1100213032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238165 (or 1238150 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1100213032221 its reverse (1222303120011), we get a palindrome (2322516152232).

The spelling of 1100213032221 in words is "one trillion, one hundred billion, two hundred thirteen million, thirty-two thousand, two hundred twenty-one".