10221212232 has 192 divisors, whose sum is σ = 36030657600. Its totient is φ = 2654830080.

The previous prime is 10221212189. The next prime is 10221212249. The reversal of 10221212232 is 23221212201.

10221212232 is a `hidden beast` number, since 1 + 0 + 221 + 212 + 232 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72528 + ... + 160320.

It is an arithmetic number, because the mean of its divisors is an integer number (187659675).

Almost surely, 2^10221212232 is an apocalyptic number.

10221212232 is a gapful number since it is divisible by the number (12) 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 10221212232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18015328800).

10221212232 is an abundant number, since it is smaller than the sum of its proper divisors (25809445368).

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

10221212232 is a wasteful number, since it uses less digits than its factorization.

10221212232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87833 (or 87816 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10221212232 its reverse (23221212201), we get a palindrome (33442424433).

The spelling of 10221212232 in words is "ten billion, two hundred twenty-one million, two hundred twelve thousand, two hundred thirty-two".