2223005471021 has 4 divisors (see below), whose sum is σ = 2223011219100. Its totient is φ = 2222999722944.

The previous prime is 2223005471003. The next prime is 2223005471023. The reversal of 2223005471021 is 1201745003222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1604627694121 + 618377776900 = 1266739^2 + 786370^2 .

It is a cyclic number.

It is not a de Polignac number, because 2223005471021 - 2³⁸ = 1948127564077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223005471023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2248556 + ... + 3082533.

It is an arithmetic number, because the mean of its divisors is an integer number (555752804775).

Almost surely, 2^{2223005471021} is an apocalyptic number.

It is an amenable number.

2223005471021 is a deficient number, since it is larger than the sum of its proper divisors (5748079).

2223005471021 is an equidigital number, since it uses as much as digits as its factorization.

2223005471021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5748078.

The product of its (nonzero) digits is 6720, while the sum is 29.

The spelling of 2223005471021 in words is "two trillion, two hundred twenty-three billion, five million, four hundred seventy-one thousand, twenty-one".