2232401021 has 4 divisors (see below), whose sum is σ = 2248461600. Its totient is φ = 2216340444.

The previous prime is 2232401009. The next prime is 2232401023. The reversal of 2232401021 is 1201042322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2232401021 is a prime.

It is a super-3 number, since 3×2232401021³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2232401023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8030081 + ... + 8030358.

It is an arithmetic number, because the mean of its divisors is an integer number (562115400).

Almost surely, 2^2232401021 is an apocalyptic number.

It is an amenable number.

2232401021 is a deficient number, since it is larger than the sum of its proper divisors (16060579).

2232401021 is a wasteful number, since it uses less digits than its factorization.

2232401021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16060578.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2232401021 is about 47248.2911966137. The cubic root of 2232401021 is about 1306.9452785199.

Adding to 2232401021 its reverse (1201042322), we get a palindrome (3433443343).

The spelling of 2232401021 in words is "two billion, two hundred thirty-two million, four hundred one thousand, twenty-one".