21332222413 has 8 divisors (see below), whose sum is σ = 22275128448. Its totient is φ = 20390601264.

The previous prime is 21332222399. The next prime is 21332222419. The reversal of 21332222413 is 31422223312.

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 21332222413 - 2²¹ = 21330125261 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 (21332222419) 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, 287206 + ... + 353767.

It is an arithmetic number, because the mean of its divisors is an integer number (2784391056).

Almost surely, 2^21332222413 is an apocalyptic number.

21332222413 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21332222413 is a deficient number, since it is larger than the sum of its proper divisors (942906035).

21332222413 is a wasteful number, since it uses less digits than its factorization.

21332222413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642443.

The product of its digits is 3456, while the sum is 25.

Adding to 21332222413 its reverse (31422223312), we get a palindrome (52754445725).

The spelling of 21332222413 in words is "twenty-one billion, three hundred thirty-two million, two hundred twenty-two thousand, four hundred thirteen".