220220021100901 has 2 divisors, whose sum is σ = 220220021100902. Its totient is φ = 220220021100900.

The previous prime is 220220021100887. The next prime is 220220021100917. The reversal of 220220021100901 is 109001120022022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199451502652900 + 20768518448001 = 14122730^2 + 4557249^2 .

It is a cyclic number.

It is not a de Polignac number, because 220220021100901 - 2⁹ = 220220021100389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220220021100931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110110010550450 + 110110010550451.

It is an arithmetic number, because the mean of its divisors is an integer number (110110010550451).

Almost surely, 2^{220220021100901} is an apocalyptic number.

It is an amenable number.

220220021100901 is a deficient number, since it is larger than the sum of its proper divisors (1).

220220021100901 is an equidigital number, since it uses as much as digits as its factorization.

220220021100901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 220220021100901 its reverse (109001120022022), we get a palindrome (329221141122923).

The spelling of 220220021100901 in words is "two hundred twenty trillion, two hundred twenty billion, twenty-one million, one hundred thousand, nine hundred one".