220012021111 has 4 divisors (see below), whose sum is σ = 220047111424. Its totient is φ = 219976930800.

The previous prime is 220012021079. The next prime is 220012021123. The reversal of 220012021111 is 111120210022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111120210022 = 2 ⋅55560105011.

It is a cyclic number.

It is not a de Polignac number, because 220012021111 - 2⁵ = 220012021079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220012021091 and 220012021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220012121111) 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, 17535750 + ... + 17548291.

It is an arithmetic number, because the mean of its divisors is an integer number (55011777856).

Almost surely, 2^220012021111 is an apocalyptic number.

220012021111 is a deficient number, since it is larger than the sum of its proper divisors (35090313).

220012021111 is an equidigital number, since it uses as much as digits as its factorization.

220012021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35090312.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 220012021111 its reverse (111120210022), we get a palindrome (331132231133).

The spelling of 220012021111 in words is "two hundred twenty billion, twelve million, twenty-one thousand, one hundred eleven".