20100102012112 has 10 divisors (see below), whose sum is σ = 38943947648498. Its totient is φ = 10050051006048.

The previous prime is 20100102012103. The next prime is 20100102012161. The reversal of 20100102012112 is 21121020100102.

It can be written as a sum of positive squares in only one way, i.e., 13907350313536 + 6192751698576 = 3729256^2 + 2488524^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20100102012092 and 20100102012101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628128187863 + ... + 628128187894.

Almost surely, 2^{20100102012112} is an apocalyptic number.

It is an amenable number.

20100102012112 is a deficient number, since it is larger than the sum of its proper divisors (18843845636386).

20100102012112 is a wasteful number, since it uses less digits than its factorization.

20100102012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256256375765 (or 1256256375759 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20100102012112 its reverse (21121020100102), we get a palindrome (41221122112214).

The spelling of 20100102012112 in words is "twenty trillion, one hundred billion, one hundred two million, twelve thousand, one hundred twelve".