20000231212 has 24 divisors (see below), whose sum is σ = 39676574000. Its totient is φ = 8745039936.

The previous prime is 20000231201. The next prime is 20000231227. The reversal of 20000231212 is 21213200002.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 20000231192 and 20000231201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10120587 + ... + 10122562.

Almost surely, 2^20000231212 is an apocalyptic number.

It is an amenable number.

20000231212 is a deficient number, since it is larger than the sum of its proper divisors (19676342788).

20000231212 is a wasteful number, since it uses less digits than its factorization.

20000231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20243185 (or 20243183 counting only the distinct ones).

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

Adding to 20000231212 its reverse (21213200002), we get a palindrome (41213431214).

The spelling of 20000231212 in words is "twenty billion, two hundred thirty-one thousand, two hundred twelve".