2021021001112 has 8 divisors (see below), whose sum is σ = 3789414377100. Its totient is φ = 1010510500552.

The previous prime is 2021021001067. The next prime is 2021021001113. The reversal of 2021021001112 is 2111001201202.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2021021001092 and 2021021001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021021001113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126313812562 + ... + 126313812577.

Almost surely, 2^{2021021001112} is an apocalyptic number.

It is an amenable number.

2021021001112 is a deficient number, since it is larger than the sum of its proper divisors (1768393375988).

2021021001112 is a wasteful number, since it uses less digits than its factorization.

2021021001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252627625145 (or 252627625141 counting only the distinct ones).

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

Adding to 2021021001112 its reverse (2111001201202), we get a palindrome (4132022202314).

The spelling of 2021021001112 in words is "two trillion, twenty-one billion, twenty-one million, one thousand, one hundred twelve".