1111211119121 has 2 divisors, whose sum is σ = 1111211119122. Its totient is φ = 1111211119120.

The previous prime is 1111211119111. The next prime is 1111211119157. The reversal of 1111211119121 is 1219111121111.

It is a m-pointer prime, because the next prime (1111211119157) can be obtained adding 1111211119121 to its product of digits (36).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1105517662096 + 5693457025 = 1051436^2 + 75455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111211119121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111211119111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555605559560 + 555605559561.

It is an arithmetic number, because the mean of its divisors is an integer number (555605559561).

Almost surely, 2^{1111211119121} is an apocalyptic number.

It is an amenable number.

1111211119121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111211119121 is an equidigital number, since it uses as much as digits as its factorization.

1111211119121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36, while the sum is 23.

The spelling of 1111211119121 in words is "one trillion, one hundred eleven billion, two hundred eleven million, one hundred nineteen thousand, one hundred twenty-one".