20340112212 has 72 divisors (see below), whose sum is σ = 60655841792. Its totient is φ = 5623992000.

The previous prime is 20340112207. The next prime is 20340112217. The reversal of 20340112212 is 21221104302.

It is a happy number.

20340112212 is a `hidden beast` number, since 2 + 0 + 340 + 112 + 212 = 666.

It is an interprime number because it is at equal distance from previous prime (20340112207) and next prime (20340112217).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20340112217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1294039 + ... + 1309662.

Almost surely, 2^20340112212 is an apocalyptic number.

It is an amenable number.

20340112212 is an abundant number, since it is smaller than the sum of its proper divisors (40315729580).

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

20340112212 is a wasteful number, since it uses less digits than its factorization.

20340112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603749 (or 2603744 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20340112212 its reverse (21221104302), we get a palindrome (41561216514).

The spelling of 20340112212 in words is "twenty billion, three hundred forty million, one hundred twelve thousand, two hundred twelve".