212021125103 has 2 divisors, whose sum is σ = 212021125104. Its totient is φ = 212021125102.

The previous prime is 212021125087. The next prime is 212021125117. The reversal of 212021125103 is 301521120212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212021125103 - 2⁴ = 212021125087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021125003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010562551 + 106010562552.

It is an arithmetic number, because the mean of its divisors is an integer number (106010562552).

Almost surely, 2^212021125103 is an apocalyptic number.

212021125103 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021125103 is an equidigital number, since it uses as much as digits as its factorization.

212021125103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 212021125103 its reverse (301521120212), we get a palindrome (513542245315).

The spelling of 212021125103 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-five thousand, one hundred three".