220101122611 has 2 divisors, whose sum is σ = 220101122612. Its totient is φ = 220101122610.

The previous prime is 220101122599. The next prime is 220101122687. The reversal of 220101122611 is 116221101022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220101122611 - 2⁹ = 220101122099 is a prime.

It is not a weakly prime, because it can be changed into another prime (220101123611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110050561305 + 110050561306.

It is an arithmetic number, because the mean of its divisors is an integer number (110050561306).

Almost surely, 2^220101122611 is an apocalyptic number.

220101122611 is a deficient number, since it is larger than the sum of its proper divisors (1).

220101122611 is an equidigital number, since it uses as much as digits as its factorization.

220101122611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 220101122611 its reverse (116221101022), we get a palindrome (336322223633).

The spelling of 220101122611 in words is "two hundred twenty billion, one hundred one million, one hundred twenty-two thousand, six hundred eleven".