1021112120201 has 8 divisors (see below), whose sum is σ = 1021971099744. Its totient is φ = 1020253452640.

The previous prime is 1021112120159. The next prime is 1021112120219. The reversal of 1021112120201 is 1020212111201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021112120201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021112120221) by changing a digit.

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, 6717626 + ... + 6867948.

It is an arithmetic number, because the mean of its divisors is an integer number (127746387468).

Almost surely, 2^{1021112120201} is an apocalyptic number.

It is an amenable number.

1021112120201 is a deficient number, since it is larger than the sum of its proper divisors (858979543).

1021112120201 is a wasteful number, since it uses less digits than its factorization.

1021112120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155991.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1021112120201 its reverse (1020212111201), we get a palindrome (2041324231402).

The spelling of 1021112120201 in words is "one trillion, twenty-one billion, one hundred twelve million, one hundred twenty thousand, two hundred one".