20001200012 has 12 divisors (see below), whose sum is σ = 35005900776. Its totient is φ = 9999514080.

The previous prime is 20001199973. The next prime is 20001200047. The reversal of 20001200012 is 21000210002.

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, 229313 + ... + 304280.

It is an arithmetic number, because the mean of its divisors is an integer number (2917158398).

Almost surely, 2^20001200012 is an apocalyptic number.

It is an amenable number.

20001200012 is a deficient number, since it is larger than the sum of its proper divisors (15004700764).

20001200012 is a wasteful number, since it uses less digits than its factorization.

20001200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542968 (or 542966 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20001200012 its reverse (21000210002), we get a palindrome (41001410014).

The spelling of 20001200012 in words is "twenty billion, one million, two hundred thousand, twelve".