2021112101 has 8 divisors (see below), whose sum is σ = 2071369344. Its totient is φ = 1971002880.

The previous prime is 2021112047. The next prime is 2021112103. The reversal of 2021112101 is 1012111202.

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-2021112101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021112103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9101 + ... + 64226.

It is an arithmetic number, because the mean of its divisors is an integer number (258921168).

Almost surely, 2^2021112101 is an apocalyptic number.

It is an amenable number.

2021112101 is a deficient number, since it is larger than the sum of its proper divisors (50257243).

2021112101 is an equidigital number, since it uses as much as digits as its factorization.

2021112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74011.

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

The square root of 2021112101 is about 44956.7803673706. The cubic root of 2021112101 is about 1264.3388048962.

Adding to 2021112101 its reverse (1012111202), we get a palindrome (3033223303).

The spelling of 2021112101 in words is "two billion, twenty-one million, one hundred twelve thousand, one hundred one".