1100121021201 has 16 divisors (see below), whose sum is σ = 1585760033600. Its totient is φ = 676034538048.

The previous prime is 1100121021169. The next prime is 1100121021229. The reversal of 1100121021201 is 1021201210011.

It is not a de Polignac number, because 1100121021201 - 2⁵ = 1100121021169 is a prime.

It is a super-2 number, since 2×1100121021201² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1100121023201) 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 in 15 ways as a sum of consecutive naturals, for example, 260813686 + ... + 260817903.

It is an arithmetic number, because the mean of its divisors is an integer number (99110002100).

Almost surely, 2^{1100121021201} is an apocalyptic number.

It is an amenable number.

1100121021201 is a deficient number, since it is larger than the sum of its proper divisors (485639012399).

1100121021201 is a wasteful number, since it uses less digits than its factorization.

1100121021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521631648.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1100121021201 its reverse (1021201210011), we get a palindrome (2121322231212).

The spelling of 1100121021201 in words is "one trillion, one hundred billion, one hundred twenty-one million, twenty-one thousand, two hundred one".