21022222024 has 16 divisors (see below), whose sum is σ = 39603478320. Its totient is φ = 10461294480.

The previous prime is 21022222021. The next prime is 21022222027. The reversal of 21022222024 is 42022222012.

It is an interprime number because it is at equal distance from previous prime (21022222021) and next prime (21022222027).

It is a junction number, because it is equal to n+sod(n) for n = 21022221992 and 21022222010.

It is not an unprimeable number, because it can be changed into a prime (21022222021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6225274 + ... + 6228649.

It is an arithmetic number, because the mean of its divisors is an integer number (2475217395).

Almost surely, 2^21022222024 is an apocalyptic number.

It is an amenable number.

21022222024 is a deficient number, since it is larger than the sum of its proper divisors (18581256296).

21022222024 is a wasteful number, since it uses less digits than its factorization.

21022222024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12454140 (or 12454136 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 21022222024 its reverse (42022222012), we get a palindrome (63044444036).

The spelling of 21022222024 in words is "twenty-one billion, twenty-two million, two hundred twenty-two thousand, twenty-four".