21033352422 has 24 divisors (see below), whose sum is σ = 45580374840. Its totient is φ = 7009869600.

The previous prime is 21033352387. The next prime is 21033352453. The reversal of 21033352422 is 22425333012.

21033352422 is a `hidden beast` number, since 2 + 103 + 33 + 524 + 2 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2922 + ... + 205122.

It is an arithmetic number, because the mean of its divisors is an integer number (1899182285).

Almost surely, 2^21033352422 is an apocalyptic number.

21033352422 is an abundant number, since it is smaller than the sum of its proper divisors (24547022418).

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

21033352422 is a wasteful number, since it uses less digits than its factorization.

21033352422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207988 (or 207985 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 21033352422 its reverse (22425333012), we get a palindrome (43458685434).

The spelling of 21033352422 in words is "twenty-one billion, thirty-three million, three hundred fifty-two thousand, four hundred twenty-two".