212101432 has 8 divisors (see below), whose sum is σ = 397690200. Its totient is φ = 106050712.

The previous prime is 212101399. The next prime is 212101441. The reversal of 212101432 is 234101212.

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13256332 + ... + 13256347.

It is an arithmetic number, because the mean of its divisors is an integer number (49711275).

Almost surely, 2^212101432 is an apocalyptic number.

It is an amenable number.

212101432 is a deficient number, since it is larger than the sum of its proper divisors (185588768).

212101432 is a wasteful number, since it uses less digits than its factorization.

212101432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26512685 (or 26512681 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 212101432 is about 14563.7025512059. The cubic root of 212101432 is about 596.3682768114.

Adding to 212101432 its reverse (234101212), we get a palindrome (446202644).

The spelling of 212101432 in words is "two hundred twelve million, one hundred one thousand, four hundred thirty-two".