220112211101 has 2 divisors, whose sum is σ = 220112211102. Its totient is φ = 220112211100.

The previous prime is 220112211097. The next prime is 220112211107. The reversal of 220112211101 is 101112211022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203874825625 + 16237385476 = 451525^2 + 127426^2 .

It is a cyclic number.

It is not a de Polignac number, because 220112211101 - 2² = 220112211097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220112211107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110056105550 + 110056105551.

It is an arithmetic number, because the mean of its divisors is an integer number (110056105551).

Almost surely, 2^220112211101 is an apocalyptic number.

It is an amenable number.

220112211101 is a deficient number, since it is larger than the sum of its proper divisors (1).

220112211101 is an equidigital number, since it uses as much as digits as its factorization.

220112211101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 220112211101 its reverse (101112211022), we get a palindrome (321224422123).

The spelling of 220112211101 in words is "two hundred twenty billion, one hundred twelve million, two hundred eleven thousand, one hundred one".