222011021121220 has 96 divisors (see below), whose sum is σ = 520414127493120. Its totient is φ = 79163524331520.

The previous prime is 222011021121191. The next prime is 222011021121319. The reversal of 222011021121220 is 22121120110222.

222011021121220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223586155 + ... + 224576914.

It is an arithmetic number, because the mean of its divisors is an integer number (5420980494720).

Almost surely, 2^{222011021121220} is an apocalyptic number.

222011021121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222011021121220 is an abundant number, since it is smaller than the sum of its proper divisors (298403106371900).

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

222011021121220 is a wasteful number, since it uses less digits than its factorization.

222011021121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448163173 (or 448163171 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 222011021121220 its reverse (22121120110222), we get a palindrome (244132141231442).

The spelling of 222011021121220 in words is "two hundred twenty-two trillion, eleven billion, twenty-one million, one hundred twenty-one thousand, two hundred twenty".