20233221222 has 16 divisors (see below), whose sum is σ = 41020778160. Its totient is φ = 6652017792.

The previous prime is 20233221221. The next prime is 20233221251. The reversal of 20233221222 is 22212233202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233221221) 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, 23096847 + ... + 23097722.

It is an arithmetic number, because the mean of its divisors is an integer number (2563798635).

Almost surely, 2^20233221222 is an apocalyptic number.

20233221222 is an abundant number, since it is smaller than the sum of its proper divisors (20787556938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20233221222 is a wasteful number, since it uses less digits than its factorization.

20233221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46194647.

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

Adding to 20233221222 its reverse (22212233202), we get a palindrome (42445454424).

The spelling of 20233221222 in words is "twenty billion, two hundred thirty-three million, two hundred twenty-one thousand, two hundred twenty-two".