210222112157 has 2 divisors, whose sum is σ = 210222112158. Its totient is φ = 210222112156.

The previous prime is 210222112127. The next prime is 210222112189. The reversal of 210222112157 is 751211222012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209158960921 + 1063151236 = 457339^2 + 32606^2 .

It is a cyclic number.

It is not a de Polignac number, because 210222112157 - 2¹⁰ = 210222111133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210222112117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105111056078 + 105111056079.

It is an arithmetic number, because the mean of its divisors is an integer number (105111056079).

Almost surely, 2^210222112157 is an apocalyptic number.

It is an amenable number.

210222112157 is a deficient number, since it is larger than the sum of its proper divisors (1).

210222112157 is an equidigital number, since it uses as much as digits as its factorization.

210222112157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 26.

Adding to 210222112157 its reverse (751211222012), we get a palindrome (961433334169).

The spelling of 210222112157 in words is "two hundred ten billion, two hundred twenty-two million, one hundred twelve thousand, one hundred fifty-seven".