220001101201212 has 24 divisors (see below), whose sum is σ = 520565985942912. Its totient is φ = 72300831380400.

The previous prime is 220001101201187. The next prime is 220001101201229. The reversal of 220001101201212 is 212102101100022.

It is a junction number, because it is equal to n+sod(n) for n = 220001101201191 and 220001101201200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129108626614 + ... + 129108628317.

It is an arithmetic number, because the mean of its divisors is an integer number (21690249414288).

Almost surely, 2^{220001101201212} is an apocalyptic number.

It is an amenable number.

220001101201212 is an abundant number, since it is smaller than the sum of its proper divisors (300564884741700).

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

220001101201212 is a wasteful number, since it uses less digits than its factorization.

220001101201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258217255009 (or 258217255007 counting only the distinct ones).

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

Adding to 220001101201212 its reverse (212102101100022), we get a palindrome (432103202301234).

The spelling of 220001101201212 in words is "two hundred twenty trillion, one billion, one hundred one million, two hundred one thousand, two hundred twelve".