22231751136 has 96 divisors (see below), whose sum is σ = 67081125888. Its totient is φ = 6315179520.

The previous prime is 22231751117. The next prime is 22231751149. The reversal of 22231751136 is 63115713222.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 22231751097 and 22231751106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20641 + ... + 211871.

It is an arithmetic number, because the mean of its divisors is an integer number (698761728).

Almost surely, 2^22231751136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22231751136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33540562944).

22231751136 is an abundant number, since it is smaller than the sum of its proper divisors (44849374752).

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

22231751136 is a wasteful number, since it uses less digits than its factorization.

22231751136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191424 (or 191416 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The spelling of 22231751136 in words is "twenty-two billion, two hundred thirty-one million, seven hundred fifty-one thousand, one hundred thirty-six".