20012303212 has 12 divisors (see below), whose sum is σ = 38205306216. Its totient is φ = 9096501440.

The previous prime is 20012303111. The next prime is 20012303249. The reversal of 20012303212 is 21230321002.

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, 227412493 + ... + 227412580.

It is an arithmetic number, because the mean of its divisors is an integer number (3183775518).

Almost surely, 2^20012303212 is an apocalyptic number.

20012303212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20012303212 is a deficient number, since it is larger than the sum of its proper divisors (18193003004).

20012303212 is a wasteful number, since it uses less digits than its factorization.

20012303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454825088 (or 454825086 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20012303212 its reverse (21230321002), we get a palindrome (41242624214).

The spelling of 20012303212 in words is "twenty billion, twelve million, three hundred three thousand, two hundred twelve".