220101231012 has 72 divisors (see below), whose sum is σ = 588826427616. Its totient is φ = 63739713024.

The previous prime is 220101231011. The next prime is 220101231013. The reversal of 220101231012 is 210132101022.

It is an interprime number because it is at equal distance from previous prime (220101231011) and next prime (220101231013).

It is a junction number, because it is equal to n+sod(n) for n = 220101230982 and 220101231000.

It is not an unprimeable number, because it can be changed into a prime (220101231011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3157618 + ... + 3226569.

It is an arithmetic number, because the mean of its divisors is an integer number (8178144828).

Almost surely, 2^220101231012 is an apocalyptic number.

It is an amenable number.

220101231012 is an abundant number, since it is smaller than the sum of its proper divisors (368725196604).

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

220101231012 is a wasteful number, since it uses less digits than its factorization.

220101231012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6384237 (or 6384222 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 220101231012 its reverse (210132101022), we get a palindrome (430233332034).

The spelling of 220101231012 in words is "two hundred twenty billion, one hundred one million, two hundred thirty-one thousand, twelve".