2233522021 has 2 divisors, whose sum is σ = 2233522022. Its totient is φ = 2233522020.

The previous prime is 2233522013. The next prime is 2233522051. The reversal of 2233522021 is 1202253322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1517959521 + 715562500 = 38961^2 + 26750^2 .

It is a cyclic number.

It is not a de Polignac number, because 2233522021 - 2³ = 2233522013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2233521983 and 2233522001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2233522001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1116761010 + 1116761011.

It is an arithmetic number, because the mean of its divisors is an integer number (1116761011).

Almost surely, 2^2233522021 is an apocalyptic number.

It is an amenable number.

2233522021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2233522021 is an equidigital number, since it uses as much as digits as its factorization.

2233522021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2233522021 is about 47260.1525706382. The cubic root of 2233522021 is about 1307.1640027367.

Adding to 2233522021 its reverse (1202253322), we get a palindrome (3435775343).

The spelling of 2233522021 in words is "two billion, two hundred thirty-three million, five hundred twenty-two thousand, twenty-one".