2021232011 has 4 divisors (see below), whose sum is σ = 2054367024. Its totient is φ = 1988097000.

The previous prime is 2021232001. The next prime is 2021232013. The reversal of 2021232011 is 1102321202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1102321202 = 2 ⋅551160601.

It is a cyclic number.

It is not a de Polignac number, because 2021232011 - 2¹⁰ = 2021230987 is a prime.

It is a super-2 number, since 2×2021232011² = 8170757684582208242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021232013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16567415 + ... + 16567536.

It is an arithmetic number, because the mean of its divisors is an integer number (513591756).

Almost surely, 2^2021232011 is an apocalyptic number.

2021232011 is a deficient number, since it is larger than the sum of its proper divisors (33135013).

2021232011 is an equidigital number, since it uses as much as digits as its factorization.

2021232011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33135012.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2021232011 is about 44958.1139617756. The cubic root of 2021232011 is about 1264.3638082706.

Adding to 2021232011 its reverse (1102321202), we get a palindrome (3123553213).

The spelling of 2021232011 in words is "two billion, twenty-one million, two hundred thirty-two thousand, eleven".