2021113211 has 8 divisors (see below), whose sum is σ = 2251638480. Its totient is φ = 1801310112.

The previous prime is 2021113147. The next prime is 2021113217. The reversal of 2021113211 is 1123111202.

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

It is a cyclic number.

It is not a de Polignac number, because 2021113211 - 2⁶ = 2021113147 is a prime.

It is a super-2 number, since 2×2021113211² = 8169797223357461042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2021113217) 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, 2680145 + ... + 2680898.

It is an arithmetic number, because the mean of its divisors is an integer number (281454810).

Almost surely, 2^2021113211 is an apocalyptic number.

2021113211 is a deficient number, since it is larger than the sum of its proper divisors (230525269).

2021113211 is a wasteful number, since it uses less digits than its factorization.

2021113211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5361085.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2021113211 is about 44956.7927125590. The cubic root of 2021113211 is about 1264.3390363555.

Adding to 2021113211 its reverse (1123111202), we get a palindrome (3144224413).

The spelling of 2021113211 in words is "two billion, twenty-one million, one hundred thirteen thousand, two hundred eleven".