21223233232213 has 8 divisors (see below), whose sum is σ = 22113019000800. Its totient is φ = 20343977473008.

The previous prime is 21223233232147. The next prime is 21223233232291. The reversal of 21223233232213 is 31223233232212.

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

It is a cyclic number.

It is not a de Polignac number, because 21223233232213 - 2¹³ = 21223233224021 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 (21223233232613) 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, 2632498231 + ... + 2632506292.

It is an arithmetic number, because the mean of its divisors is an integer number (2764127375100).

Almost surely, 2^{21223233232213} is an apocalyptic number.

It is an amenable number.

21223233232213 is a deficient number, since it is larger than the sum of its proper divisors (889785768587).

21223233232213 is a wasteful number, since it uses less digits than its factorization.

21223233232213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5265004691.

The product of its digits is 31104, while the sum is 31.

Adding to 21223233232213 its reverse (31223233232212), we get a palindrome (52446466464425).

Subtracting 21223233232213 from its reverse (31223233232212), we obtain a palindrome (9999999999999).

The spelling of 21223233232213 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred thirty-three million, two hundred thirty-two thousand, two hundred thirteen".