1100021221043 has 2 divisors, whose sum is σ = 1100021221044. Its totient is φ = 1100021221042.

The previous prime is 1100021220997. The next prime is 1100021221049. The reversal of 1100021221043 is 3401221200011.

It is a strong prime.

It is an emirp because it is prime and its reverse (3401221200011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1100021221043 - 2⁶ = 1100021220979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1100021221049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550010610521 + 550010610522.

It is an arithmetic number, because the mean of its divisors is an integer number (550010610522).

Almost surely, 2^{1100021221043} is an apocalyptic number.

1100021221043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100021221043 is an equidigital number, since it uses as much as digits as its factorization.

1100021221043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1100021221043 its reverse (3401221200011), we get a palindrome (4501242421054).

The spelling of 1100021221043 in words is "one trillion, one hundred billion, twenty-one million, two hundred twenty-one thousand, forty-three".