121122102001001 has 4 divisors (see below), whose sum is σ = 122581404434832. Its totient is φ = 119662799567172.

The previous prime is 121122102000961. The next prime is 121122102001039. The reversal of 121122102001001 is 100100201221121.

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 121122102001001 - 2⁴² = 116724055489897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121122102001051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729651216791 + ... + 729651216956.

It is an arithmetic number, because the mean of its divisors is an integer number (30645351108708).

Almost surely, 2^{121122102001001} is an apocalyptic number.

It is an amenable number.

121122102001001 is a deficient number, since it is larger than the sum of its proper divisors (1459302433831).

121122102001001 is an equidigital number, since it uses as much as digits as its factorization.

121122102001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459302433830.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121122102001001 its reverse (100100201221121), we get a palindrome (221222303222122).

The spelling of 121122102001001 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, one hundred two million, one thousand, one".