220211220121111 has 8 divisors (see below), whose sum is σ = 220528762681040. Its totient is φ = 219893724205632.

The previous prime is 220211220121097. The next prime is 220211220121117. The reversal of 220211220121111 is 111121022112022.

It is a happy number.

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 220211220121111 - 2⁴⁷ = 79473731765783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220211220121117) 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, 2206665 + ... + 21101938.

It is an arithmetic number, because the mean of its divisors is an integer number (27566095335130).

Almost surely, 2^{220211220121111} is an apocalyptic number.

220211220121111 is a deficient number, since it is larger than the sum of its proper divisors (317542559929).

220211220121111 is a wasteful number, since it uses less digits than its factorization.

220211220121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23322225.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 220211220121111 its reverse (111121022112022), we get a palindrome (331332242233133).

The spelling of 220211220121111 in words is "two hundred twenty trillion, two hundred eleven billion, two hundred twenty million, one hundred twenty-one thousand, one hundred eleven".