210222220057 has 2 divisors, whose sum is σ = 210222220058. Its totient is φ = 210222220056.

The previous prime is 210222220037. The next prime is 210222220073. The reversal of 210222220057 is 750022222012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194389282816 + 15832937241 = 440896^2 + 125829^2 .

It is a cyclic number.

It is not a de Polignac number, because 210222220057 - 2³⁵ = 175862481689 is a prime.

It is not a weakly prime, because it can be changed into another prime (210222220037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105111110028 + 105111110029.

It is an arithmetic number, because the mean of its divisors is an integer number (105111110029).

Almost surely, 2^210222220057 is an apocalyptic number.

It is an amenable number.

210222220057 is a deficient number, since it is larger than the sum of its proper divisors (1).

210222220057 is an equidigital number, since it uses as much as digits as its factorization.

210222220057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 25.

Adding to 210222220057 its reverse (750022222012), we get a palindrome (960244442069).

It can be divided in two parts, 21022222005 and 7, that added together give a palindrome (21022222012).

The spelling of 210222220057 in words is "two hundred ten billion, two hundred twenty-two million, two hundred twenty thousand, fifty-seven".