20212222232 has 16 divisors (see below), whose sum is σ = 37931861760. Its totient is φ = 10097059104.

The previous prime is 20212222231. The next prime is 20212222237. The reversal of 20212222232 is 23222221202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212222231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1122008 + ... + 1139879.

It is an arithmetic number, because the mean of its divisors is an integer number (2370741360).

Almost surely, 2^20212222232 is an apocalyptic number.

It is an amenable number.

20212222232 is a deficient number, since it is larger than the sum of its proper divisors (17719639528).

20212222232 is a wasteful number, since it uses less digits than its factorization.

20212222232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263010 (or 2263006 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20212222232 its reverse (23222221202), we get a palindrome (43434443434).

The spelling of 20212222232 in words is "twenty billion, two hundred twelve million, two hundred twenty-two thousand, two hundred thirty-two".