21203332022 has 8 divisors (see below), whose sum is σ = 31814510616. Its totient is φ = 10598495152.

The previous prime is 21203332013. The next prime is 21203332063. The reversal of 21203332022 is 22023330212.

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 = 21203331985 and 21203332003.

It is a congruent number.

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, 1577063 + ... + 1590450.

It is an arithmetic number, because the mean of its divisors is an integer number (3976813827).

Almost surely, 2^21203332022 is an apocalyptic number.

21203332022 is a deficient number, since it is larger than the sum of its proper divisors (10611178594).

21203332022 is a wasteful number, since it uses less digits than its factorization.

21203332022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170862.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21203332022 its reverse (22023330212), we get a palindrome (43226662234).

The spelling of 21203332022 in words is "twenty-one billion, two hundred three million, three hundred thirty-two thousand, twenty-two".