220111102012001 has 2 divisors, whose sum is σ = 220111102012002. Its totient is φ = 220111102012000.

The previous prime is 220111102011973. The next prime is 220111102012033. The reversal of 220111102012001 is 100210201111022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111593025337600 + 108518076674401 = 10563760^2 + 10417201^2 .

It is a cyclic number.

It is not a de Polignac number, because 220111102012001 - 2¹⁸ = 220111101749857 is a prime.

It is not a weakly prime, because it can be changed into another prime (220111102012091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110055551006000 + 110055551006001.

It is an arithmetic number, because the mean of its divisors is an integer number (110055551006001).

Almost surely, 2^{220111102012001} is an apocalyptic number.

It is an amenable number.

220111102012001 is a deficient number, since it is larger than the sum of its proper divisors (1).

220111102012001 is an equidigital number, since it uses as much as digits as its factorization.

220111102012001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 220111102012001 its reverse (100210201111022), we get a palindrome (320321303123023).

The spelling of 220111102012001 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred two million, twelve thousand, one".