1212122120203 has 2 divisors, whose sum is σ = 1212122120204. Its totient is φ = 1212122120202.

The previous prime is 1212122120189. The next prime is 1212122120207. The reversal of 1212122120203 is 3020212212121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212122120203 - 2¹⁷ = 1212121989131 is a prime.

It is a super-2 number, since 2×1212122120203² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212122120207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606061060101 + 606061060102.

It is an arithmetic number, because the mean of its divisors is an integer number (606061060102).

Almost surely, 2^{1212122120203} is an apocalyptic number.

1212122120203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212122120203 is an equidigital number, since it uses as much as digits as its factorization.

1212122120203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1212122120203 its reverse (3020212212121), we get a palindrome (4232334332324).

The spelling of 1212122120203 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, one hundred twenty thousand, two hundred three".