1211232122099 has 2 divisors, whose sum is σ = 1211232122100. Its totient is φ = 1211232122098.

The previous prime is 1211232122077. The next prime is 1211232122173. The reversal of 1211232122099 is 9902212321121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1211232122099 - 2⁸ = 1211232121843 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211232122029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605616061049 + 605616061050.

It is an arithmetic number, because the mean of its divisors is an integer number (605616061050).

Almost surely, 2^{1211232122099} is an apocalyptic number.

1211232122099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211232122099 is an equidigital number, since it uses as much as digits as its factorization.

1211232122099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

It can be divided in two parts, 1211232 and 122099, that added together give a palindrome (1333331).

The spelling of 1211232122099 in words is "one trillion, two hundred eleven billion, two hundred thirty-two million, one hundred twenty-two thousand, ninety-nine".