1122002011121 has 2 divisors, whose sum is σ = 1122002011122. Its totient is φ = 1122002011120.

The previous prime is 1122002011111. The next prime is 1122002011133. The reversal of 1122002011121 is 1211102002211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1067636560225 + 54365450896 = 1033265^2 + 233164^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122002011121 - 2²² = 1121997816817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1122002011096 and 1122002011105.

It is not a weakly prime, because it can be changed into another prime (1122002011111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561001005560 + 561001005561.

It is an arithmetic number, because the mean of its divisors is an integer number (561001005561).

Almost surely, 2^{1122002011121} is an apocalyptic number.

It is an amenable number.

1122002011121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122002011121 is an equidigital number, since it uses as much as digits as its factorization.

1122002011121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1122002011121 its reverse (1211102002211), we get a palindrome (2333104013332).

The spelling of 1122002011121 in words is "one trillion, one hundred twenty-two billion, two million, eleven thousand, one hundred twenty-one".