1100121023201 has 2 divisors, whose sum is σ = 1100121023202. Its totient is φ = 1100121023200.

The previous prime is 1100121023191. The next prime is 1100121023227. The reversal of 1100121023201 is 1023201210011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 974960734801 + 125160288400 = 987401^2 + 353780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100121023201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1100121023501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550060511600 + 550060511601.

It is an arithmetic number, because the mean of its divisors is an integer number (550060511601).

Almost surely, 2^{1100121023201} is an apocalyptic number.

It is an amenable number.

1100121023201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100121023201 is an equidigital number, since it uses as much as digits as its factorization.

1100121023201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1100121023201 its reverse (1023201210011), we get a palindrome (2123322233212).

The spelling of 1100121023201 in words is "one trillion, one hundred billion, one hundred twenty-one million, twenty-three thousand, two hundred one".