220201111212101 has 2 divisors, whose sum is σ = 220201111212102. Its totient is φ = 220201111212100.

The previous prime is 220201111212053. The next prime is 220201111212119. The reversal of 220201111212101 is 101212111102022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152305587676225 + 67895523535876 = 12341215^2 + 8239874^2 .

It is a cyclic number.

It is not a de Polignac number, because 220201111212101 - 2⁴⁶ = 149832367034437 is a prime.

It is a super-3 number, since 3×220201111212101³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220201111212101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220201111212151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110100555606050 + 110100555606051.

It is an arithmetic number, because the mean of its divisors is an integer number (110100555606051).

Almost surely, 2^{220201111212101} is an apocalyptic number.

It is an amenable number.

220201111212101 is a deficient number, since it is larger than the sum of its proper divisors (1).

220201111212101 is an equidigital number, since it uses as much as digits as its factorization.

220201111212101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 220201111212101 its reverse (101212111102022), we get a palindrome (321413222314123).

The spelling of 220201111212101 in words is "two hundred twenty trillion, two hundred one billion, one hundred eleven million, two hundred twelve thousand, one hundred one".