220101212112 has 80 divisors (see below), whose sum is σ = 586056240000. Its totient is φ = 71147865600.

The previous prime is 220101212087. The next prime is 220101212119. The reversal of 220101212112 is 211212101022.

It is a junction number, because it is equal to n+sod(n) for n = 220101212091 and 220101212100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220101212119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321487 + ... + 737262.

It is an arithmetic number, because the mean of its divisors is an integer number (7325703000).

Almost surely, 2^220101212112 is an apocalyptic number.

It is an amenable number.

220101212112 is an abundant number, since it is smaller than the sum of its proper divisors (365955027888).

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

220101212112 is a wasteful number, since it uses less digits than its factorization.

220101212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058892 (or 1058886 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 220101212112 its reverse (211212101022), we get a palindrome (431313313134).

The spelling of 220101212112 in words is "two hundred twenty billion, one hundred one million, two hundred twelve thousand, one hundred twelve".