212001131232 has 144 divisors (see below), whose sum is σ = 670095015408. Its totient is φ = 63030589440.

The previous prime is 212001131219. The next prime is 212001131291. The reversal of 212001131232 is 232131100212.

It is a tau number, because it is divible by the number of its divisors (144).

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

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, 463413 + ... + 799220.

It is an arithmetic number, because the mean of its divisors is an integer number (4653437607).

Almost surely, 2^212001131232 is an apocalyptic number.

212001131232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212001131232 is an abundant number, since it is smaller than the sum of its proper divisors (458093884176).

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

212001131232 is a wasteful number, since it uses less digits than its factorization.

212001131232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262713 (or 1262702 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212001131232 its reverse (232131100212), we get a palindrome (444132231444).

The spelling of 212001131232 in words is "two hundred twelve billion, one million, one hundred thirty-one thousand, two hundred thirty-two".