20212132 has 12 divisors (see below), whose sum is σ = 35412300. Its totient is φ = 10094336.

The previous prime is 20212117. The next prime is 20212151. The reversal of 20212132 is 23121202.

It can be written as a sum of positive squares in 2 ways, for example, as 10074276 + 10137856 = 3174^2 + 3184^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1788 + ... + 6604.

It is an arithmetic number, because the mean of its divisors is an integer number (2951025).

Almost surely, 2^20212132 is an apocalyptic number.

It is an amenable number.

20212132 is a deficient number, since it is larger than the sum of its proper divisors (15200168).

20212132 is a wasteful number, since it uses less digits than its factorization.

20212132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5870 (or 5868 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20212132 is about 4495.7904755449. The cubic root of 20212132 is about 272.3980798883.

Adding to 20212132 its reverse (23121202), we get a palindrome (43333334).

The spelling of 20212132 in words is "twenty million, two hundred twelve thousand, one hundred thirty-two".