22145303424 has 64 divisors (see below), whose sum is σ = 58841853840. Its totient is φ = 7379460096.

The previous prime is 22145303423. The next prime is 22145303431. The reversal of 22145303424 is 42430354122.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×22145303424² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22145303391 and 22145303400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22145303423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1589352 + ... + 1603224.

Almost surely, 2^22145303424 is an apocalyptic number.

22145303424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22145303424 is an abundant number, since it is smaller than the sum of its proper divisors (36696550416).

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

22145303424 is a wasteful number, since it uses less digits than its factorization.

22145303424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18047 (or 18035 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 22145303424 its reverse (42430354122), we get a palindrome (64575657546).

The spelling of 22145303424 in words is "twenty-two billion, one hundred forty-five million, three hundred three thousand, four hundred twenty-four".