220120001212 has 12 divisors (see below), whose sum is σ = 388243152640. Its totient is φ = 109193386176.

The previous prime is 220120001173. The next prime is 220120001219. The reversal of 220120001212 is 212100021022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220120001192 and 220120001201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220120001219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216653037 + ... + 216654052.

Almost surely, 2^220120001212 is an apocalyptic number.

It is an amenable number.

220120001212 is a deficient number, since it is larger than the sum of its proper divisors (168123151428).

220120001212 is a wasteful number, since it uses less digits than its factorization.

220120001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433307220 (or 433307218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220120001212 its reverse (212100021022), we get a palindrome (432220022234).

The spelling of 220120001212 in words is "two hundred twenty billion, one hundred twenty million, one thousand, two hundred twelve".