220120021220111 has 2 divisors, whose sum is σ = 220120021220112. Its totient is φ = 220120021220110.

The previous prime is 220120021220027. The next prime is 220120021220147. The reversal of 220120021220111 is 111022120021022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220120021220111 - 2¹⁴ = 220120021203727 is a prime.

It is a super-2 number, since 2×220120021220111² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220120021220111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220120021220711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110060010610055 + 110060010610056.

It is an arithmetic number, because the mean of its divisors is an integer number (110060010610056).

Almost surely, 2^{220120021220111} is an apocalyptic number.

220120021220111 is a deficient number, since it is larger than the sum of its proper divisors (1).

220120021220111 is an equidigital number, since it uses as much as digits as its factorization.

220120021220111 is an odious number, because the sum of its binary digits is odd.

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

Adding to 220120021220111 its reverse (111022120021022), we get a palindrome (331142141241133).

The spelling of 220120021220111 in words is "two hundred twenty trillion, one hundred twenty billion, twenty-one million, two hundred twenty thousand, one hundred eleven".