220211220111 has 16 divisors (see below), whose sum is σ = 310923350784. Its totient is φ = 138155336064.

The previous prime is 220211220071. The next prime is 220211220113. The reversal of 220211220111 is 111022112022.

It is not a de Polignac number, because 220211220111 - 2¹⁰ = 220211219087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220211220113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184590 + ... + 688836.

It is an arithmetic number, because the mean of its divisors is an integer number (19432709424).

Almost surely, 2^220211220111 is an apocalyptic number.

220211220111 is a deficient number, since it is larger than the sum of its proper divisors (90712130673).

220211220111 is a wasteful number, since it uses less digits than its factorization.

220211220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512830.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 220211220111 its reverse (111022112022), we get a palindrome (331233332133).

The spelling of 220211220111 in words is "two hundred twenty billion, two hundred eleven million, two hundred twenty thousand, one hundred eleven".