2232021 has 16 divisors (see below), whose sum is σ = 3271680.
Its totient is φ = 1342320.
The previous prime is 2232017. The next prime is 2232023. The reversal of 2232021 is 1202322.
It is not a de Polignac number, because 2232021 - 22 = 2232017 is a prime.
It is a super-3 number, since 3×22320213 = 33359235077594835783, which contains 333 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2231988 and 2232006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2232023) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7746 + ... + 8028.
It is an arithmetic number, because the mean of its divisors is an integer number (204480).
22232021 is an apocalyptic number.
It is an amenable number.
2232021 is a deficient number, since it is larger than the sum of its proper divisors (1039659).
2232021 is a wasteful number, since it uses less digits than its factorization.
2232021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 536.
The product of its (nonzero) digits is 48, while the sum is 12.
The square root of 2232021 is about 1493.9949799112.
The cubic root of 2232021 is about 130.6871114002.
Adding to 2232021 its reverse (1202322), we get a palindrome (3434343).
The spelling of 2232021 in words is "two million, two hundred thirty-two thousand, twenty-one".