10121020012 has 12 divisors (see below), whose sum is σ = 17720685976. Its totient is φ = 5057966880.

The previous prime is 10121020009. The next prime is 10121020043. The reversal of 10121020012 is 21002012101.

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, 626814 + ... + 642757.

Almost surely, 2^10121020012 is an apocalyptic number.

It is an amenable number.

10121020012 is a deficient number, since it is larger than the sum of its proper divisors (7599665964).

10121020012 is a wasteful number, since it uses less digits than its factorization.

10121020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271568 (or 1271566 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10121020012 its reverse (21002012101), we get a palindrome (31123032113).

The spelling of 10121020012 in words is "ten billion, one hundred twenty-one million, twenty thousand, twelve".