222221012110020 has 144 divisors (see below), whose sum is σ = 840399464032128. Its totient is φ = 46175794721280.

The previous prime is 222221012110003. The next prime is 222221012110081. The reversal of 222221012110020 is 20011210122222.

It is a happy number.

222221012110020 is a `hidden beast` number, since 2 + 222 + 210 + 1 + 211 + 0 + 0 + 20 = 666.

222221012110020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222221012109975 and 222221012110002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8016617169 + ... + 8016644888.

It is an arithmetic number, because the mean of its divisors is an integer number (5836107389112).

Almost surely, 2^{222221012110020} is an apocalyptic number.

222221012110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222221012110020 is an abundant number, since it is smaller than the sum of its proper divisors (618178451922108).

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

222221012110020 is a wasteful number, since it uses less digits than its factorization.

222221012110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16033262090 (or 16033262085 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222221012110020 its reverse (20011210122222), we get a palindrome (242232222232242).

The spelling of 222221012110020 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, twelve million, one hundred ten thousand, twenty".