1100022112221 has 8 divisors (see below), whose sum is σ = 1466926751424. Its totient is φ = 733232773920.

The previous prime is 1100022112201. The next prime is 1100022112261. The reversal of 1100022112221 is 1222112200011.

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

It is not a de Polignac number, because 1100022112221 - 2¹³ = 1100022104029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1100022112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100022112201) 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, 28802961 + ... + 28841126.

It is an arithmetic number, because the mean of its divisors is an integer number (183365843928).

Almost surely, 2^{1100022112221} is an apocalyptic number.

It is an amenable number.

1100022112221 is a deficient number, since it is larger than the sum of its proper divisors (366904639203).

1100022112221 is an equidigital number, since it uses as much as digits as its factorization.

1100022112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57650451.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1100022112221 its reverse (1222112200011), we get a palindrome (2322134312232).

The spelling of 1100022112221 in words is "one trillion, one hundred billion, twenty-two million, one hundred twelve thousand, two hundred twenty-one".