20212323412 has 12 divisors (see below), whose sum is σ = 35399669760. Its totient is φ = 10098132056.

The previous prime is 20212323379. The next prime is 20212323413. The reversal of 20212323412 is 21432321202.

It is a super-2 number, since 2×20212323412² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212323413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2001748 + ... + 2011819.

It is an arithmetic number, because the mean of its divisors is an integer number (2949972480).

Almost surely, 2^20212323412 is an apocalyptic number.

It is an amenable number.

20212323412 is a deficient number, since it is larger than the sum of its proper divisors (15187346348).

20212323412 is a wasteful number, since it uses less digits than its factorization.

20212323412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014830 (or 4014828 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20212323412 its reverse (21432321202), we get a palindrome (41644644614).

The spelling of 20212323412 in words is "twenty billion, two hundred twelve million, three hundred twenty-three thousand, four hundred twelve".