220020001212 has 24 divisors (see below), whose sum is σ = 560050912512. Its totient is φ = 66672727600.

The previous prime is 220020001171. The next prime is 220020001237. The reversal of 220020001212 is 212100020022.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 833408964 + ... + 833409227.

It is an arithmetic number, because the mean of its divisors is an integer number (23335454688).

Almost surely, 2^220020001212 is an apocalyptic number.

220020001212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220020001212 is an abundant number, since it is smaller than the sum of its proper divisors (340030911300).

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

220020001212 is a wasteful number, since it uses less digits than its factorization.

220020001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666818209 (or 1666818207 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 220020001212 its reverse (212100020022), we get a palindrome (432120021234).

The spelling of 220020001212 in words is "two hundred twenty billion, twenty million, one thousand, two hundred twelve".