220111111001057 has 2 divisors, whose sum is σ = 220111111001058. Its totient is φ = 220111111001056.

The previous prime is 220111111001027. The next prime is 220111111001069. The reversal of 220111111001057 is 750100111111022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198673507235281 + 21437603765776 = 14095159^2 + 4630076^2 .

It is a cyclic number.

It is not a de Polignac number, because 220111111001057 - 2²² = 220111106806753 is a prime.

It is a super-2 number, since 2×220111111001057² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220111111001027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110055555500528 + 110055555500529.

It is an arithmetic number, because the mean of its divisors is an integer number (110055555500529).

Almost surely, 2^{220111111001057} is an apocalyptic number.

It is an amenable number.

220111111001057 is a deficient number, since it is larger than the sum of its proper divisors (1).

220111111001057 is an equidigital number, since it uses as much as digits as its factorization.

220111111001057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 23.

Adding to 220111111001057 its reverse (750100111111022), we get a palindrome (970211222112079).

The spelling of 220111111001057 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred eleven million, one thousand, fifty-seven".