220020021021212 has 12 divisors (see below), whose sum is σ = 386405268236736. Its totient is φ = 109618515810720.

The previous prime is 220020021021191. The next prime is 220020021021217. The reversal of 220020021021212 is 212120120020022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220020021021217) 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, 97873673708 + ... + 97873675955.

It is an arithmetic number, because the mean of its divisors is an integer number (32200439019728).

Almost surely, 2^{220020021021212} is an apocalyptic number.

It is an amenable number.

220020021021212 is a deficient number, since it is larger than the sum of its proper divisors (166385247215524).

220020021021212 is a wasteful number, since it uses less digits than its factorization.

220020021021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195747349948 (or 195747349946 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 220020021021212 its reverse (212120120020022), we get a palindrome (432140141041234).

The spelling of 220020021021212 in words is "two hundred twenty trillion, twenty billion, twenty-one million, twenty-one thousand, two hundred twelve".