20112311221332 has 24 divisors (see below), whose sum is σ = 51194974018272. Its totient is φ = 6094639764000.

The previous prime is 20112311221319. The next prime is 20112311221421. The reversal of 20112311221332 is 23312211321102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76182996919 + ... + 76182997182.

It is an arithmetic number, because the mean of its divisors is an integer number (2133123917428).

Almost surely, 2^{20112311221332} is an apocalyptic number.

20112311221332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20112311221332 is an abundant number, since it is smaller than the sum of its proper divisors (31082662796940).

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

20112311221332 is a wasteful number, since it uses less digits than its factorization.

20112311221332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152365994119 (or 152365994117 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 20112311221332 its reverse (23312211321102), we get a palindrome (43424522542434).

The spelling of 20112311221332 in words is "twenty trillion, one hundred twelve billion, three hundred eleven million, two hundred twenty-one thousand, three hundred thirty-two".