1021002100112 has 40 divisors (see below), whose sum is σ = 2004657259200. Its totient is φ = 503716579200.

The previous prime is 1021002100109. The next prime is 1021002100123. The reversal of 1021002100112 is 2110012001201.

It is a super-3 number, since 3×1021002100112³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1021002100093 and 1021002100102.

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 in 7 ways as a sum of consecutive naturals, for example, 1058138 + ... + 1778105.

It is an arithmetic number, because the mean of its divisors is an integer number (50116431480).

Almost surely, 2^{1021002100112} is an apocalyptic number.

It is an amenable number.

1021002100112 is a deficient number, since it is larger than the sum of its proper divisors (983655159088).

1021002100112 is a wasteful number, since it uses less digits than its factorization.

1021002100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836551 (or 2836545 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1021002100112 its reverse (2110012001201), we get a palindrome (3131014101313).

The spelling of 1021002100112 in words is "one trillion, twenty-one billion, two million, one hundred thousand, one hundred twelve".