21033031322 has 8 divisors (see below), whose sum is σ = 32402237556. Its totient is φ = 10232285472.

The previous prime is 21033031301. The next prime is 21033031361. The reversal of 21033031322 is 22313033012.

It can be written as a sum of positive squares in 2 ways, for example, as 15687813001 + 5345218321 = 125251^2 + 73111^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 21033031294 and 21033031303.

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, 142115003 + ... + 142115150.

Almost surely, 2^21033031322 is an apocalyptic number.

21033031322 is a deficient number, since it is larger than the sum of its proper divisors (11369206234).

21033031322 is a wasteful number, since it uses less digits than its factorization.

21033031322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284230192.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21033031322 its reverse (22313033012), we get a palindrome (43346064334).

The spelling of 21033031322 in words is "twenty-one billion, thirty-three million, thirty-one thousand, three hundred twenty-two".