20210231222 has 8 divisors (see below), whose sum is σ = 30317093856. Its totient is φ = 10104533272.

The previous prime is 20210231221. The next prime is 20210231231. The reversal of 20210231222 is 22213201202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20210231222² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20210231222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210231221) 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, 246413 + ... + 318024.

It is an arithmetic number, because the mean of its divisors is an integer number (3789636732).

Almost surely, 2^20210231222 is an apocalyptic number.

20210231222 is a deficient number, since it is larger than the sum of its proper divisors (10106862634).

20210231222 is a wasteful number, since it uses less digits than its factorization.

20210231222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582342.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20210231222 its reverse (22213201202), we get a palindrome (42423432424).

The spelling of 20210231222 in words is "twenty billion, two hundred ten million, two hundred thirty-one thousand, two hundred twenty-two".