220202221221012 has 12 divisors (see below), whose sum is σ = 513805182849056. Its totient is φ = 73400740407000.

The previous prime is 220202221220983. The next prime is 220202221221019. The reversal of 220202221221012 is 210122122202022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 220202221221012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220202221221019) 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, 9175092550864 + ... + 9175092550887.

Almost surely, 2^{220202221221012} is an apocalyptic number.

It is an amenable number.

220202221221012 is an abundant number, since it is smaller than the sum of its proper divisors (293602961628044).

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

220202221221012 is a wasteful number, since it uses less digits than its factorization.

220202221221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18350185101758 (or 18350185101756 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 220202221221012 its reverse (210122122202022), we get a palindrome (430324343423034).

The spelling of 220202221221012 in words is "two hundred twenty trillion, two hundred two billion, two hundred twenty-one million, two hundred twenty-one thousand, twelve".