22231434072 has 32 divisors (see below), whose sum is σ = 58847914800. Its totient is φ = 6974567424.

The previous prime is 22231434067. The next prime is 22231434073. The reversal of 22231434072 is 27043413222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231434073) 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, 27243997 + ... + 27244812.

Almost surely, 2^22231434072 is an apocalyptic number.

It is an amenable number.

22231434072 is an abundant number, since it is smaller than the sum of its proper divisors (36616480728).

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

22231434072 is a wasteful number, since it uses less digits than its factorization.

22231434072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54488835 (or 54488831 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

Adding to 22231434072 its reverse (27043413222), we get a palindrome (49274847294).

The spelling of 22231434072 in words is "twenty-two billion, two hundred thirty-one million, four hundred thirty-four thousand, seventy-two".