220111220222101 has 8 divisors (see below), whose sum is σ = 237276853402680. Its totient is φ = 202979015735232.

The previous prime is 220111220221969. The next prime is 220111220222161. The reversal of 220111220222101 is 101222022111022.

It can be written as a sum of positive squares in 4 ways, for example, as 24006178152100 + 196105042070001 = 4899610^2 + 14003751^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220111220222101 - 2²⁷ = 220111086004373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220111220222161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8357159746 + ... + 8357186083.

It is an arithmetic number, because the mean of its divisors is an integer number (29659606675335).

Almost surely, 2^{220111220222101} is an apocalyptic number.

It is an amenable number.

220111220222101 is a deficient number, since it is larger than the sum of its proper divisors (17165633180579).

220111220222101 is a wasteful number, since it uses less digits than its factorization.

220111220222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16714346855.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220111220222101 its reverse (101222022111022), we get a palindrome (321333242333123).

The spelling of 220111220222101 in words is "two hundred twenty trillion, one hundred eleven billion, two hundred twenty million, two hundred twenty-two thousand, one hundred one".