21121303322 has 16 divisors (see below), whose sum is σ = 36644190912. Its totient is φ = 8942926560.

The previous prime is 21121303309. The next prime is 21121303349. The reversal of 21121303322 is 22330312112.

It is a super-2 number, since 2×21121303322² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21121303294 and 21121303303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9087179 + ... + 9089502.

It is an arithmetic number, because the mean of its divisors is an integer number (2290261932).

Almost surely, 2^21121303322 is an apocalyptic number.

21121303322 is a deficient number, since it is larger than the sum of its proper divisors (15522887590).

21121303322 is a wasteful number, since it uses less digits than its factorization.

21121303322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18176773.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21121303322 its reverse (22330312112), we get a palindrome (43451615434).

The spelling of 21121303322 in words is "twenty-one billion, one hundred twenty-one million, three hundred three thousand, three hundred twenty-two".