221021133143199 has 4 divisors (see below), whose sum is σ = 294694844190936. Its totient is φ = 147347422095464.

The previous prime is 221021133143183. The next prime is 221021133143243. The reversal of 221021133143199 is 991341331120122.

221021133143199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221021133143199 - 2⁴ = 221021133143183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221021133143199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221021133143119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36836855523864 + ... + 36836855523869.

It is an arithmetic number, because the mean of its divisors is an integer number (73673711047734).

Almost surely, 2^{221021133143199} is an apocalyptic number.

221021133143199 is a deficient number, since it is larger than the sum of its proper divisors (73673711047737).

221021133143199 is an equidigital number, since it uses as much as digits as its factorization.

221021133143199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73673711047736.

The product of its (nonzero) digits is 69984, while the sum is 42.

The spelling of 221021133143199 in words is "two hundred twenty-one trillion, twenty-one billion, one hundred thirty-three million, one hundred forty-three thousand, one hundred ninety-nine".