223212111232 has 192 divisors, whose sum is σ = 501659827200. Its totient is φ = 98808765440.

The previous prime is 223212111229. The next prime is 223212111251. The reversal of 223212111232 is 232111212322.

It is a super-3 number, since 3×223212111232³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173976063 + ... + 173977345.

It is an arithmetic number, because the mean of its divisors is an integer number (2612811600).

Almost surely, 2^223212111232 is an apocalyptic number.

223212111232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223212111232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250829913600).

223212111232 is an abundant number, since it is smaller than the sum of its proper divisors (278447715968).

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

223212111232 is a wasteful number, since it uses less digits than its factorization.

223212111232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605 (or 1582 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

Adding to 223212111232 its reverse (232111212322), we get a palindrome (455323323554).

The spelling of 223212111232 in words is "two hundred twenty-three billion, two hundred twelve million, one hundred eleven thousand, two hundred thirty-two".