22403032221 has 12 divisors (see below), whose sum is σ = 31525598112. Its totient is φ = 14149282824.

The previous prime is 22403032219. The next prime is 22403032241. The reversal of 22403032221 is 12223030422.

It is not a de Polignac number, because 22403032221 - 2¹ = 22403032219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22403032241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10341961 + ... + 10344126.

It is an arithmetic number, because the mean of its divisors is an integer number (2627133176).

Almost surely, 2^22403032221 is an apocalyptic number.

It is an amenable number.

22403032221 is a deficient number, since it is larger than the sum of its proper divisors (9122565891).

22403032221 is a wasteful number, since it uses less digits than its factorization.

22403032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20686128 (or 20686109 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22403032221 its reverse (12223030422), we get a palindrome (34626062643).

The spelling of 22403032221 in words is "twenty-two billion, four hundred three million, thirty-two thousand, two hundred twenty-one".