220012221111 has 4 divisors (see below), whose sum is σ = 293349628152. Its totient is φ = 146674814072.

The previous prime is 220012221041. The next prime is 220012221157. The reversal of 220012221111 is 111122210022.

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 220012221111 - 2⁹ = 220012220599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220012221811) 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, 36668703516 + ... + 36668703521.

It is an arithmetic number, because the mean of its divisors is an integer number (73337407038).

Almost surely, 2^220012221111 is an apocalyptic number.

220012221111 is a deficient number, since it is larger than the sum of its proper divisors (73337407041).

220012221111 is an equidigital number, since it uses as much as digits as its factorization.

220012221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73337407040.

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

Adding to 220012221111 its reverse (111122210022), we get a palindrome (331134431133).

The spelling of 220012221111 in words is "two hundred twenty billion, twelve million, two hundred twenty-one thousand, one hundred eleven".