2233621621 has 8 divisors (see below), whose sum is σ = 2784775104. Its totient is φ = 1740484320.

The previous prime is 2233621613. The next prime is 2233621639. The reversal of 2233621621 is 1261263322.

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 2233621621 - 2³ = 2233621613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2233621621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2233621651) 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, 14503960 + ... + 14504113.

It is an arithmetic number, because the mean of its divisors is an integer number (348096888).

Almost surely, 2^2233621621 is an apocalyptic number.

It is an amenable number.

2233621621 is a deficient number, since it is larger than the sum of its proper divisors (551153483).

2233621621 is a wasteful number, since it uses less digits than its factorization.

2233621621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29008091.

The product of its digits is 5184, while the sum is 28.

The square root of 2233621621 is about 47261.2063007283. The cubic root of 2233621621 is about 1307.1834326771.

Adding to 2233621621 its reverse (1261263322), we get a palindrome (3494884943).

The spelling of 2233621621 in words is "two billion, two hundred thirty-three million, six hundred twenty-one thousand, six hundred twenty-one".