220201101222101 has 2 divisors, whose sum is σ = 220201101222102. Its totient is φ = 220201101222100.

The previous prime is 220201101222083. The next prime is 220201101222121. The reversal of 220201101222101 is 101222101102022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177039683251876 + 43161417970225 = 13305626^2 + 6569735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220201101222101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220201101222101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220201101222121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110100550611050 + 110100550611051.

It is an arithmetic number, because the mean of its divisors is an integer number (110100550611051).

Almost surely, 2^{220201101222101} is an apocalyptic number.

It is an amenable number.

220201101222101 is a deficient number, since it is larger than the sum of its proper divisors (1).

220201101222101 is an equidigital number, since it uses as much as digits as its factorization.

220201101222101 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 17.

Adding to 220201101222101 its reverse (101222101102022), we get a palindrome (321423202324123).

The spelling of 220201101222101 in words is "two hundred twenty trillion, two hundred one billion, one hundred one million, two hundred twenty-two thousand, one hundred one".