220122201021012 has 36 divisors (see below), whose sum is σ = 565850855737440. Its totient is φ = 72130438751952.

The previous prime is 220122201021007. The next prime is 220122201021013. The reversal of 220122201021012 is 210120102221022.

It is a happy number.

220122201021012 is a `hidden beast` number, since 220 + 1 + 2 + 220 + 1 + 0 + 210 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220122201021013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51817841808 + ... + 51817846055.

It is an arithmetic number, because the mean of its divisors is an integer number (15718079326040).

Almost surely, 2^{220122201021012} is an apocalyptic number.

It is an amenable number.

220122201021012 is an abundant number, since it is smaller than the sum of its proper divisors (345728654716428).

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

220122201021012 is a wasteful number, since it uses less digits than its factorization.

220122201021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103635687932 (or 103635687927 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220122201021012 its reverse (210120102221022), we get a palindrome (430242303242034).

The spelling of 220122201021012 in words is "two hundred twenty trillion, one hundred twenty-two billion, two hundred one million, twenty-one thousand, twelve".