1100212022221 has 12 divisors (see below), whose sum is σ = 1193440385280. Its totient is φ = 1013801639760.

The previous prime is 1100212022191. The next prime is 1100212022227. The reversal of 1100212022221 is 1222202120011.

It is a happy number.

It is not a de Polignac number, because 1100212022221 - 2⁹ = 1100212021709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100212022195 and 1100212022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100212022227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5604141 + ... + 5797138.

It is an arithmetic number, because the mean of its divisors is an integer number (99453365440).

Almost surely, 2^{1100212022221} is an apocalyptic number.

It is an amenable number.

1100212022221 is a deficient number, since it is larger than the sum of its proper divisors (93228363059).

1100212022221 is a wasteful number, since it uses less digits than its factorization.

1100212022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11401876 (or 11401863 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1100212022221 its reverse (1222202120011), we get a palindrome (2322414142232).

The spelling of 1100212022221 in words is "one trillion, one hundred billion, two hundred twelve million, twenty-two thousand, two hundred twenty-one".