21226032330 has 64 divisors (see below), whose sum is σ = 51320666880. Its totient is φ = 5618353664.

The previous prime is 21226032293. The next prime is 21226032367. The reversal of 21226032330 is 3323062212.

It is an interprime number because it is at equal distance from previous prime (21226032293) and next prime (21226032367).

It is a self number, because there is not a number n which added to its sum of digits gives 21226032330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4050472 + ... + 4055708.

It is an arithmetic number, because the mean of its divisors is an integer number (801885420).

Almost surely, 2^21226032330 is an apocalyptic number.

21226032330 is an abundant number, since it is smaller than the sum of its proper divisors (30094634550).

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

21226032330 is a wasteful number, since it uses less digits than its factorization.

21226032330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6223.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21226032330 its reverse (3323062212), we get a palindrome (24549094542).

The spelling of 21226032330 in words is "twenty-one billion, two hundred twenty-six million, thirty-two thousand, three hundred thirty".