220231022312 has 16 divisors (see below), whose sum is σ = 471923619360. Its totient is φ = 94384723824.

The previous prime is 220231022311. The next prime is 220231022437. The reversal of 220231022312 is 213220132022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (220231022311) 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, 1966348358 + ... + 1966348469.

It is an arithmetic number, because the mean of its divisors is an integer number (29495226210).

Almost surely, 2^220231022312 is an apocalyptic number.

It is an amenable number.

220231022312 is an abundant number, since it is smaller than the sum of its proper divisors (251692597048).

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

220231022312 is a wasteful number, since it uses less digits than its factorization.

220231022312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932696840 (or 3932696836 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 220231022312 its reverse (213220132022), we get a palindrome (433451154334).

The spelling of 220231022312 in words is "two hundred twenty billion, two hundred thirty-one million, twenty-two thousand, three hundred twelve".