20100100012 has 6 divisors (see below), whose sum is σ = 35175175028. Its totient is φ = 10050050004.

The previous prime is 20100099997. The next prime is 20100100037. The reversal of 20100100012 is 21000100102.

It is a junction number, because it is equal to n+sod(n) for n = 20100099968 and 20100100004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2512512498 + ... + 2512512505.

Almost surely, 2^20100100012 is an apocalyptic number.

It is an amenable number.

20100100012 is a deficient number, since it is larger than the sum of its proper divisors (15075075016).

20100100012 is a wasteful number, since it uses less digits than its factorization.

20100100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025025007 (or 5025025005 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20100100012 its reverse (21000100102), we get a palindrome (41100200114).

The spelling of 20100100012 in words is "twenty billion, one hundred million, one hundred thousand, twelve".