1211202102203 has 2 divisors, whose sum is σ = 1211202102204. Its totient is φ = 1211202102202.

The previous prime is 1211202102023. The next prime is 1211202102217. The reversal of 1211202102203 is 3022012021121.

Together with previous prime (1211202102023) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211202102203 - 2³⁸ = 936324195259 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211202102263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605601051101 + 605601051102.

It is an arithmetic number, because the mean of its divisors is an integer number (605601051102).

Almost surely, 2^{1211202102203} is an apocalyptic number.

1211202102203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211202102203 is an equidigital number, since it uses as much as digits as its factorization.

1211202102203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1211202102203 its reverse (3022012021121), we get a palindrome (4233214123324).

The spelling of 1211202102203 in words is "one trillion, two hundred eleven billion, two hundred two million, one hundred two thousand, two hundred three".