22244431420 has 36 divisors (see below), whose sum is σ = 47073344472. Its totient is φ = 8829714400.

The previous prime is 22244431403. The next prime is 22244431427. The reversal of 22244431420 is 2413444222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22244431427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 310815 + ... + 375625.

It is an arithmetic number, because the mean of its divisors is an integer number (1307592902).

Almost surely, 2^22244431420 is an apocalyptic number.

22244431420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22244431420 is an abundant number, since it is smaller than the sum of its proper divisors (24828913052).

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

22244431420 is a wasteful number, since it uses less digits than its factorization.

22244431420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65082 (or 64949 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 22244431420 its reverse (2413444222), we get a palindrome (24657875642).

The spelling of 22244431420 in words is "twenty-two billion, two hundred forty-four million, four hundred thirty-one thousand, four hundred twenty".