21322022104 has 8 divisors (see below), whose sum is σ = 39978791460. Its totient is φ = 10661011048.

The previous prime is 21322022101. The next prime is 21322022123. The reversal of 21322022104 is 40122022312.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322022101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332626374 + ... + 1332626389.

Almost surely, 2^21322022104 is an apocalyptic number.

It is an amenable number.

21322022104 is a deficient number, since it is larger than the sum of its proper divisors (18656769356).

21322022104 is a wasteful number, since it uses less digits than its factorization.

21322022104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665252769 (or 2665252765 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 21322022104 its reverse (40122022312), we get a palindrome (61444044416).

The spelling of 21322022104 in words is "twenty-one billion, three hundred twenty-two million, twenty-two thousand, one hundred four".