220011222020111 has 4 divisors (see below), whose sum is σ = 220011619801512. Its totient is φ = 220010824238712.

The previous prime is 220011222020101. The next prime is 220011222020113. The reversal of 220011222020111 is 111020222110022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220011222020111 - 2¹⁰ = 220011222019087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220011222020111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220011222020113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198059900 + ... + 199167633.

It is an arithmetic number, because the mean of its divisors is an integer number (55002904950378).

Almost surely, 2^{220011222020111} is an apocalyptic number.

220011222020111 is a deficient number, since it is larger than the sum of its proper divisors (397781401).

220011222020111 is an equidigital number, since it uses as much as digits as its factorization.

220011222020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397781400.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220011222020111 its reverse (111020222110022), we get a palindrome (331031444130133).

The spelling of 220011222020111 in words is "two hundred twenty trillion, eleven billion, two hundred twenty-two million, twenty thousand, one hundred eleven".