220222111121012 has 144 divisors (see below), whose sum is σ = 527011682303232. Its totient is φ = 79151641470720.

The previous prime is 220222111121011. The next prime is 220222111121059. The reversal of 220222111121012 is 210121111222022.

220222111121012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220222111121011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42773573 + ... + 47644755.

It is an arithmetic number, because the mean of its divisors is an integer number (3659803349328).

Almost surely, 2^{220222111121012} is an apocalyptic number.

220222111121012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220222111121012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263505841151616).

220222111121012 is an abundant number, since it is smaller than the sum of its proper divisors (306789571182220).

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

220222111121012 is a wasteful number, since it uses less digits than its factorization.

220222111121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4872838 (or 4872829 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 220222111121012 its reverse (210121111222022), we get a palindrome (430343222343034).

The spelling of 220222111121012 in words is "two hundred twenty trillion, two hundred twenty-two billion, one hundred eleven million, one hundred twenty-one thousand, twelve".