220022222212121 has 8 divisors (see below), whose sum is σ = 251455583432064. Its totient is φ = 188589264789600.

The previous prime is 220022222212109. The next prime is 220022222212123. The reversal of 220022222212121 is 121212222220022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220022222212121 - 2⁶ = 220022222212057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220022222212123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99780845 + ... + 101962058.

It is an arithmetic number, because the mean of its divisors is an integer number (31431947929008).

Almost surely, 2^{220022222212121} is an apocalyptic number.

It is an amenable number.

220022222212121 is a deficient number, since it is larger than the sum of its proper divisors (31433361219943).

220022222212121 is a wasteful number, since it uses less digits than its factorization.

220022222212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201898711.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 220022222212121 its reverse (121212222220022), we get a palindrome (341234444432143).

The spelling of 220022222212121 in words is "two hundred twenty trillion, twenty-two billion, two hundred twenty-two million, two hundred twelve thousand, one hundred twenty-one".