220001222120211 has 48 divisors (see below), whose sum is σ = 375144113430528. Its totient is φ = 121577844888000.

The previous prime is 220001222120179. The next prime is 220001222120249. The reversal of 220001222120211 is 112021222100022.

It is a happy number.

220001222120211 is a `hidden beast` number, since 2 + 200 + 0 + 12 + 221 + 20 + 211 = 666.

It is not a de Polignac number, because 220001222120211 - 2⁵ = 220001222120179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220001222120311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34973440 + ... + 40781661.

It is an arithmetic number, because the mean of its divisors is an integer number (7815502363136).

Almost surely, 2^{220001222120211} is an apocalyptic number.

220001222120211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

220001222120211 is a deficient number, since it is larger than the sum of its proper divisors (155142891310317).

220001222120211 is a wasteful number, since it uses less digits than its factorization.

220001222120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75756632 (or 75756629 counting only the distinct ones).

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

Adding to 220001222120211 its reverse (112021222100022), we get a palindrome (332022444220233).

The spelling of 220001222120211 in words is "two hundred twenty trillion, one billion, two hundred twenty-two million, one hundred twenty thousand, two hundred eleven".