212112322153 has 2 divisors, whose sum is σ = 212112322154. Its totient is φ = 212112322152.

The previous prime is 212112322129. The next prime is 212112322181. The reversal of 212112322153 is 351223211212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156193315369 + 55919006784 = 395213^2 + 236472^2 .

It is a cyclic number.

It is not a de Polignac number, because 212112322153 - 2³³ = 203522387561 is a prime.

It is not a weakly prime, because it can be changed into another prime (212112322553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106056161076 + 106056161077.

It is an arithmetic number, because the mean of its divisors is an integer number (106056161077).

Almost surely, 2^212112322153 is an apocalyptic number.

It is an amenable number.

212112322153 is a deficient number, since it is larger than the sum of its proper divisors (1).

212112322153 is an equidigital number, since it uses as much as digits as its factorization.

212112322153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 25.

Adding to 212112322153 its reverse (351223211212), we get a palindrome (563335533365).

The spelling of 212112322153 in words is "two hundred twelve billion, one hundred twelve million, three hundred twenty-two thousand, one hundred fifty-three".