220122021012 has 12 divisors (see below), whose sum is σ = 513618049056. Its totient is φ = 73374007000.

The previous prime is 220122020957. The next prime is 220122021017. The reversal of 220122021012 is 210120221022.

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

It is a junction number, because it is equal to n+sod(n) for n = 220122020982 and 220122021000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220122021017) 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, 9171750864 + ... + 9171750887.

It is an arithmetic number, because the mean of its divisors is an integer number (42801504088).

Almost surely, 2^220122021012 is an apocalyptic number.

It is an amenable number.

220122021012 is an abundant number, since it is smaller than the sum of its proper divisors (293496028044).

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

220122021012 is a wasteful number, since it uses less digits than its factorization.

220122021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18343501758 (or 18343501756 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220122021012 its reverse (210120221022), we get a palindrome (430242242034).

The spelling of 220122021012 in words is "two hundred twenty billion, one hundred twenty-two million, twenty-one thousand, twelve".