212103301121 has 2 divisors, whose sum is σ = 212103301122. Its totient is φ = 212103301120.

The previous prime is 212103300979. The next prime is 212103301133. The reversal of 212103301121 is 121103301212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210924340225 + 1178960896 = 459265^2 + 34336^2 .

It is a cyclic number.

It is not a de Polignac number, because 212103301121 - 2¹⁴ = 212103284737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212103301121.

It is not a weakly prime, because it can be changed into another prime (212103501121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106051650560 + 106051650561.

It is an arithmetic number, because the mean of its divisors is an integer number (106051650561).

Almost surely, 2^212103301121 is an apocalyptic number.

It is an amenable number.

212103301121 is a deficient number, since it is larger than the sum of its proper divisors (1).

212103301121 is an equidigital number, since it uses as much as digits as its factorization.

212103301121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 212103301121 its reverse (121103301212), we get a palindrome (333206602333).

Subtracting from 212103301121 its reverse (121103301212), we obtain a palindrome (90999999909).

The spelling of 212103301121 in words is "two hundred twelve billion, one hundred three million, three hundred one thousand, one hundred twenty-one".