21030322022 has 16 divisors (see below), whose sum is σ = 34552863360. Its totient is φ = 9555358848.

The previous prime is 21030322013. The next prime is 21030322043. The reversal of 21030322022 is 22022303012.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

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, 10663478 + ... + 10665449.

It is an arithmetic number, because the mean of its divisors is an integer number (2159553960).

Almost surely, 2^21030322022 is an apocalyptic number.

21030322022 is a deficient number, since it is larger than the sum of its proper divisors (13522541338).

21030322022 is a wasteful number, since it uses less digits than its factorization.

21030322022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21328975.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 21030322022 its reverse (22022303012), we get a palindrome (43052625034).

The spelling of 21030322022 in words is "twenty-one billion, thirty million, three hundred twenty-two thousand, twenty-two".