20022233221 has 8 divisors (see below), whose sum is σ = 20804991488. Its totient is φ = 19248030000.

The previous prime is 20022233201. The next prime is 20022233237. The reversal of 20022233221 is 12233222002.

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 20022233221 - 2¹⁹ = 20021708933 is a prime.

It is a super-2 number, since 2×20022233221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022233201) 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, 2133990 + ... + 2143351.

It is an arithmetic number, because the mean of its divisors is an integer number (2600623936).

Almost surely, 2^20022233221 is an apocalyptic number.

It is an amenable number.

20022233221 is a deficient number, since it is larger than the sum of its proper divisors (782758267).

20022233221 is a wasteful number, since it uses less digits than its factorization.

20022233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4277523.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20022233221 its reverse (12233222002), we get a palindrome (32255455223).

The spelling of 20022233221 in words is "twenty billion, twenty-two million, two hundred thirty-three thousand, two hundred twenty-one".