220111120101 has 4 divisors (see below), whose sum is σ = 293481493472. Its totient is φ = 146740746732.

The previous prime is 220111120063. The next prime is 220111120139. The reversal of 220111120101 is 101021111022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (220111120063) and next prime (220111120139).

It is not a de Polignac number, because 220111120101 - 2⁷ = 220111119973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220111120171) 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, 36685186681 + ... + 36685186686.

It is an arithmetic number, because the mean of its divisors is an integer number (73370373368).

Almost surely, 2^220111120101 is an apocalyptic number.

It is an amenable number.

220111120101 is a deficient number, since it is larger than the sum of its proper divisors (73370373371).

220111120101 is an equidigital number, since it uses as much as digits as its factorization.

220111120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73370373370.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 220111120101 its reverse (101021111022), we get a palindrome (321132231123).

The spelling of 220111120101 in words is "two hundred twenty billion, one hundred eleven million, one hundred twenty thousand, one hundred one".