20010101111012 has 12 divisors (see below), whose sum is σ = 37077540294060. Its totient is φ = 9416518169856.

The previous prime is 20010101110991. The next prime is 20010101111041. The reversal of 20010101111012 is 21011110101002.

It can be written as a sum of positive squares in 2 ways, for example, as 17196812785216 + 2813288325796 = 4146904^2 + 1677286^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20010101110984 and 20010101111002.

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, 147133096337 + ... + 147133096472.

It is an arithmetic number, because the mean of its divisors is an integer number (3089795024505).

Almost surely, 2^{20010101111012} is an apocalyptic number.

It is an amenable number.

20010101111012 is a deficient number, since it is larger than the sum of its proper divisors (17067439183048).

20010101111012 is a wasteful number, since it uses less digits than its factorization.

20010101111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294266192830 (or 294266192828 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 20010101111012 its reverse (21011110101002), we get a palindrome (41021211212014).

The spelling of 20010101111012 in words is "twenty trillion, ten billion, one hundred one million, one hundred eleven thousand, twelve".