22235121152 has 40 divisors (see below), whose sum is σ = 44508593976. Its totient is φ = 11097096192.

The previous prime is 22235121137. The next prime is 22235121211. The reversal of 22235121152 is 25112153222.

It is a happy number.

It is a super-2 number, since 2×22235121152² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240368 + ... + 319760.

Almost surely, 2^22235121152 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 22235121152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22254296988).

22235121152 is an abundant number, since it is smaller than the sum of its proper divisors (22273472824).

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

22235121152 is an frugal number, since it uses more digits than its factorization.

22235121152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79958 (or 79942 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

Adding to 22235121152 its reverse (25112153222), we get a palindrome (47347274374).

The spelling of 22235121152 in words is "twenty-two billion, two hundred thirty-five million, one hundred twenty-one thousand, one hundred fifty-two".