22421451532 has 48 divisors (see below), whose sum is σ = 40380705792. Its totient is φ = 10889948160.

The previous prime is 22421451523. The next prime is 22421451551. The reversal of 22421451532 is 23515412422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22421451494 and 22421451503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5862973 + ... + 5866795.

It is an arithmetic number, because the mean of its divisors is an integer number (841264704).

Almost surely, 2^22421451532 is an apocalyptic number.

It is an amenable number.

22421451532 is a deficient number, since it is larger than the sum of its proper divisors (17959254260).

22421451532 is a wasteful number, since it uses less digits than its factorization.

22421451532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4198 (or 4196 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

Adding to 22421451532 its reverse (23515412422), we get a palindrome (45936863954).

The spelling of 22421451532 in words is "twenty-two billion, four hundred twenty-one million, four hundred fifty-one thousand, five hundred thirty-two".