220221012222220 has 24 divisors (see below), whose sum is σ = 462883404158784. Its totient is φ = 88008542318976.

The previous prime is 220221012222199. The next prime is 220221012222221. The reversal of 220221012222220 is 22222210122022.

It is a junction number, because it is equal to n+sod(n) for n = 220221012222191 and 220221012222200.

It is not an unprimeable number, because it can be changed into a prime (220221012222221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4991388009 + ... + 4991432128.

It is an arithmetic number, because the mean of its divisors is an integer number (19286808506616).

Almost surely, 2^{220221012222220} is an apocalyptic number.

220221012222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220221012222220 is an abundant number, since it is smaller than the sum of its proper divisors (242662391936564).

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

220221012222220 is a wasteful number, since it uses less digits than its factorization.

220221012222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9982821249 (or 9982821247 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 220221012222220 its reverse (22222210122022), we get a palindrome (242443222344242).

The spelling of 220221012222220 in words is "two hundred twenty trillion, two hundred twenty-one billion, twelve million, two hundred twenty-two thousand, two hundred twenty".