220221211211101 has 2 divisors, whose sum is σ = 220221211211102. Its totient is φ = 220221211211100.

The previous prime is 220221211211051. The next prime is 220221211211119. The reversal of 220221211211101 is 101112112122022.

It is a happy number.

220221211211101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111187956484900 + 109033254726201 = 10544570^2 + 10441899^2 .

It is a cyclic number.

It is not a de Polignac number, because 220221211211101 - 2²³ = 220221202822493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220221211211501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110110605605550 + 110110605605551.

It is an arithmetic number, because the mean of its divisors is an integer number (110110605605551).

Almost surely, 2^{220221211211101} is an apocalyptic number.

It is an amenable number.

220221211211101 is a deficient number, since it is larger than the sum of its proper divisors (1).

220221211211101 is an equidigital number, since it uses as much as digits as its factorization.

220221211211101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 220221211211101 its reverse (101112112122022), we get a palindrome (321333323333123).

The spelling of 220221211211101 in words is "two hundred twenty trillion, two hundred twenty-one billion, two hundred eleven million, two hundred eleven thousand, one hundred one".