220211012111957 has 2 divisors, whose sum is σ = 220211012111958. Its totient is φ = 220211012111956.

The previous prime is 220211012111941. The next prime is 220211012112019. The reversal of 220211012111957 is 759111210112022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187212065042116 + 32998947069841 = 13682546^2 + 5744471^2 .

It is a cyclic number.

It is not a de Polignac number, because 220211012111957 - 2⁴ = 220211012111941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220211012119957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110105506055978 + 110105506055979.

It is an arithmetic number, because the mean of its divisors is an integer number (110105506055979).

Almost surely, 2^{220211012111957} is an apocalyptic number.

It is an amenable number.

220211012111957 is a deficient number, since it is larger than the sum of its proper divisors (1).

220211012111957 is an equidigital number, since it uses as much as digits as its factorization.

220211012111957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 35.

Adding to 220211012111957 its reverse (759111210112022), we get a palindrome (979322222223979).

The spelling of 220211012111957 in words is "two hundred twenty trillion, two hundred eleven billion, twelve million, one hundred eleven thousand, nine hundred fifty-seven".