21322020010 has 8 divisors (see below), whose sum is σ = 38379636036. Its totient is φ = 8528808000.

The previous prime is 21322019987. The next prime is 21322020053. The reversal of 21322020010 is 1002022312.

It can be written as a sum of positive squares in 2 ways, for example, as 21175779361 + 146240649 = 145519^2 + 12093^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066100991 + ... + 1066101010.

Almost surely, 2^21322020010 is an apocalyptic number.

21322020010 is a deficient number, since it is larger than the sum of its proper divisors (17057616026).

21322020010 is a wasteful number, since it uses less digits than its factorization.

21322020010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132202008.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 21322020010 its reverse (1002022312), we get a palindrome (22324042322).

The spelling of 21322020010 in words is "twenty-one billion, three hundred twenty-two million, twenty thousand, ten".