220001101212 has 24 divisors (see below), whose sum is σ = 513362717056. Its totient is φ = 73329869808.

The previous prime is 220001101193. The next prime is 220001101237. The reversal of 220001101212 is 212101100022.

220001101212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234538 + ... + 703569.

Almost surely, 2^220001101212 is an apocalyptic number.

It is an amenable number.

220001101212 is an abundant number, since it is smaller than the sum of its proper divisors (293361615844).

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

220001101212 is a wasteful number, since it uses less digits than its factorization.

220001101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957657 (or 957655 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 220001101212 its reverse (212101100022), we get a palindrome (432102201234).

The spelling of 220001101212 in words is "two hundred twenty billion, one million, one hundred one thousand, two hundred twelve".