220221000222012 has 48 divisors (see below), whose sum is σ = 573436536304800. Its totient is φ = 73086445480320.

The previous prime is 220221000221987. The next prime is 220221000222017. The reversal of 220221000222012 is 210222000122022.

220221000222012 is a `hidden beast` number, since 220 + 2 + 210 + 0 + 0 + 2 + 220 + 12 = 666.

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 (220221000222017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4452122289 + ... + 4452171752.

It is an arithmetic number, because the mean of its divisors is an integer number (11946594506350).

Almost surely, 2^{220221000222012} is an apocalyptic number.

It is an amenable number.

220221000222012 is an abundant number, since it is smaller than the sum of its proper divisors (353215536082788).

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

220221000222012 is a wasteful number, since it uses less digits than its factorization.

220221000222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8904294283 (or 8904294275 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 220221000222012 its reverse (210222000122022), we get a palindrome (430443000344034).

The spelling of 220221000222012 in words is "two hundred twenty trillion, two hundred twenty-one billion, two hundred twenty-two thousand, twelve".