1100122121001 has 4 divisors (see below), whose sum is σ = 1466829494672. Its totient is φ = 733414747332.

The previous prime is 1100122120961. The next prime is 1100122121027. The reversal of 1100122121001 is 1001212210011.

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 not a de Polignac number, because 1100122121001 - 2¹⁴ = 1100122104617 is a prime.

It is a super-2 number, since 2×1100122121001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1100122121801) 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, 183353686831 + ... + 183353686836.

It is an arithmetic number, because the mean of its divisors is an integer number (366707373668).

Almost surely, 2^{1100122121001} is an apocalyptic number.

It is an amenable number.

1100122121001 is a deficient number, since it is larger than the sum of its proper divisors (366707373671).

1100122121001 is an equidigital number, since it uses as much as digits as its factorization.

1100122121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366707373670.

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

Adding to 1100122121001 its reverse (1001212210011), we get a palindrome (2101334331012).

The spelling of 1100122121001 in words is "one trillion, one hundred billion, one hundred twenty-two million, one hundred twenty-one thousand, one".