220211110123001 has 2 divisors, whose sum is σ = 220211110123002. Its totient is φ = 220211110123000.

The previous prime is 220211110122979. The next prime is 220211110123021. The reversal of 220211110123001 is 100321011112022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110295784752400 + 109915325370601 = 10502180^2 + 10484051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220211110123001 is a prime.

It is not a weakly prime, because it can be changed into another prime (220211110123021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110105555061500 + 110105555061501.

It is an arithmetic number, because the mean of its divisors is an integer number (110105555061501).

Almost surely, 2^{220211110123001} is an apocalyptic number.

It is an amenable number.

220211110123001 is a deficient number, since it is larger than the sum of its proper divisors (1).

220211110123001 is an equidigital number, since it uses as much as digits as its factorization.

220211110123001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 220211110123001 its reverse (100321011112022), we get a palindrome (320532121235023).

The spelling of 220211110123001 in words is "two hundred twenty trillion, two hundred eleven billion, one hundred ten million, one hundred twenty-three thousand, one".