20100020121212 has 6 divisors (see below), whose sum is σ = 35175035212128. Its totient is φ = 10050010060604.

The previous prime is 20100020121151. The next prime is 20100020121281. The reversal of 20100020121212 is 21212102000102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2512502515148 + ... + 2512502515155.

It is an arithmetic number, because the mean of its divisors is an integer number (5862505868688).

Almost surely, 2^{20100020121212} is an apocalyptic number.

It is an amenable number.

20100020121212 is a deficient number, since it is larger than the sum of its proper divisors (15075015090916).

20100020121212 is a wasteful number, since it uses less digits than its factorization.

20100020121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025005030307 (or 5025005030305 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20100020121212 its reverse (21212102000102), we get a palindrome (41312122121314).

The spelling of 20100020121212 in words is "twenty trillion, one hundred billion, twenty million, one hundred twenty-one thousand, two hundred twelve".