20020112212 has 12 divisors (see below), whose sum is σ = 35040465460. Its totient is φ = 10008550656.

The previous prime is 20020112207. The next prime is 20020112257. The reversal of 20020112212 is 21221102002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7991287236 + 12028824976 = 89394^2 + 109676^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20020112192 and 20020112201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346173 + ... + 399844.

Almost surely, 2^20020112212 is an apocalyptic number.

It is an amenable number.

20020112212 is a deficient number, since it is larger than the sum of its proper divisors (15020353248).

20020112212 is a wasteful number, since it uses less digits than its factorization.

20020112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752730 (or 752728 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20020112212 its reverse (21221102002), we get a palindrome (41241214214).

The spelling of 20020112212 in words is "twenty billion, twenty million, one hundred twelve thousand, two hundred twelve".