21322301322 has 32 divisors (see below), whose sum is σ = 48770370432. Its totient is φ = 6087875904.

The previous prime is 21322301311. The next prime is 21322301327. The reversal of 21322301322 is 22310322312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (21322301327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113673 + ... + 235724.

It is an arithmetic number, because the mean of its divisors is an integer number (1524074076).

Almost surely, 2^21322301322 is an apocalyptic number.

21322301322 is an abundant number, since it is smaller than the sum of its proper divisors (27448069110).

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

21322301322 is a wasteful number, since it uses less digits than its factorization.

21322301322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350862.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21322301322 its reverse (22310322312), we get a palindrome (43632623634).

The spelling of 21322301322 in words is "twenty-one billion, three hundred twenty-two million, three hundred one thousand, three hundred twenty-two".