20212412 has 12 divisors (see below), whose sum is σ = 38587416. Its totient is φ = 9187440.

The previous prime is 20212399. The next prime is 20212417. The reversal of 20212412 is 21421202.

It is a super-3 number, since 3×20212412³ (a number of 23 digits) contains 333 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229643 + ... + 229730.

It is an arithmetic number, because the mean of its divisors is an integer number (3215618).

Almost surely, 2^20212412 is an apocalyptic number.

20212412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20212412 is a deficient number, since it is larger than the sum of its proper divisors (18375004).

20212412 is a wasteful number, since it uses less digits than its factorization.

20212412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459388 (or 459386 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 20212412 is about 4495.8216156783. The cubic root of 20212412 is about 272.3993377320.

Adding to 20212412 its reverse (21421202), we get a palindrome (41633614).

The spelling of 20212412 in words is "twenty million, two hundred twelve thousand, four hundred twelve".