21232422402 has 8 divisors (see below), whose sum is σ = 42464844816. Its totient is φ = 7077474132.

The previous prime is 21232422389. The next prime is 21232422403. The reversal of 21232422402 is 20422423212.

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

21232422402 is an admirable number.

It is a super-2 number, since 2×21232422402² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21232422403) 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, 1769368528 + ... + 1769368539.

It is an arithmetic number, because the mean of its divisors is an integer number (5308105602).

Almost surely, 2^21232422402 is an apocalyptic number.

21232422402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21232422402 is a wasteful number, since it uses less digits than its factorization.

21232422402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538737072.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 21232422402 its reverse (20422423212), we get a palindrome (41654845614).

The spelling of 21232422402 in words is "twenty-one billion, two hundred thirty-two million, four hundred twenty-two thousand, four hundred two".