220102121212 has 12 divisors (see below), whose sum is σ = 401925612816. Its totient is φ = 105266231840.

The previous prime is 220102121209. The next prime is 220102121219. The reversal of 220102121212 is 212121201022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220102121219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1196207089 + ... + 1196207272.

It is an arithmetic number, because the mean of its divisors is an integer number (33493801068).

Almost surely, 2^220102121212 is an apocalyptic number.

It is an amenable number.

220102121212 is a deficient number, since it is larger than the sum of its proper divisors (181823491604).

220102121212 is a wasteful number, since it uses less digits than its factorization.

220102121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392414388 (or 2392414386 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220102121212 its reverse (212121201022), we get a palindrome (432223322234).

The spelling of 220102121212 in words is "two hundred twenty billion, one hundred two million, one hundred twenty-one thousand, two hundred twelve".