121110020001001 has 4 divisors (see below), whose sum is σ = 121117219091712. Its totient is φ = 121102820910292.

The previous prime is 121110020000987. The next prime is 121110020001023. The reversal of 121110020001001 is 100100020011121.

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 121110020001001 - 2¹¹ = 121110019998953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121110020001031) 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, 3599520121 + ... + 3599553766.

It is an arithmetic number, because the mean of its divisors is an integer number (30279304772928).

Almost surely, 2^{121110020001001} is an apocalyptic number.

It is an amenable number.

121110020001001 is a deficient number, since it is larger than the sum of its proper divisors (7199090711).

121110020001001 is an equidigital number, since it uses as much as digits as its factorization.

121110020001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7199090710.

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

Adding to 121110020001001 its reverse (100100020011121), we get a palindrome (221210040012122).

The spelling of 121110020001001 in words is "one hundred twenty-one trillion, one hundred ten billion, twenty million, one thousand, one".