12101000111012 has 12 divisors (see below), whose sum is σ = 21176774698716. Its totient is φ = 6050493054240.

The previous prime is 12101000111009. The next prime is 12101000111029. The reversal of 12101000111012 is 21011100010121.

It can be written as a sum of positive squares in 2 ways, for example, as 2754185861476 + 9346814249536 = 1659574^2 + 3057256^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12101000110984 and 12101000111002.

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 in 3 ways as a sum of consecutive naturals, for example, 5244758 + ... + 7190930.

It is an arithmetic number, because the mean of its divisors is an integer number (1764731224893).

Almost surely, 2^{12101000111012} is an apocalyptic number.

It is an amenable number.

12101000111012 is a deficient number, since it is larger than the sum of its proper divisors (9075774587704).

12101000111012 is a wasteful number, since it uses less digits than its factorization.

12101000111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500638 (or 3500636 counting only the distinct ones).

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

Adding to 12101000111012 its reverse (21011100010121), we get a palindrome (33112100121133).

The spelling of 12101000111012 in words is "twelve trillion, one hundred one billion, one hundred eleven thousand, twelve".