1100121102001 has 4 divisors (see below), whose sum is σ = 1101231215104. Its totient is φ = 1099010988900.

The previous prime is 1100121101971. The next prime is 1100121102011. The reversal of 1100121102001 is 1002011210011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1100121102001 - 2⁹ = 1100121101489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100121102011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555055065 + ... + 555057046.

It is an arithmetic number, because the mean of its divisors is an integer number (275307803776).

Almost surely, 2^{1100121102001} is an apocalyptic number.

It is an amenable number.

1100121102001 is a deficient number, since it is larger than the sum of its proper divisors (1110113103).

1100121102001 is an equidigital number, since it uses as much as digits as its factorization.

1100121102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110113102.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1100121102001 its reverse (1002011210011), we get a palindrome (2102132312012).

The spelling of 1100121102001 in words is "one trillion, one hundred billion, one hundred twenty-one million, one hundred two thousand, one".