121122201001 has 8 divisors (see below), whose sum is σ = 128265825024. Its totient is φ = 113980664640.

The previous prime is 121122200989. The next prime is 121122201059. The reversal of 121122201001 is 100102221121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121122201001 - 2¹³ = 121122192809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121122201061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401665 + ... + 635278.

It is an arithmetic number, because the mean of its divisors is an integer number (16033228128).

Almost surely, 2^121122201001 is an apocalyptic number.

It is an amenable number.

121122201001 is a deficient number, since it is larger than the sum of its proper divisors (7143624023).

121122201001 is a wasteful number, since it uses less digits than its factorization.

121122201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043831.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121122201001 its reverse (100102221121), we get a palindrome (221224422122).

The spelling of 121122201001 in words is "one hundred twenty-one billion, one hundred twenty-two million, two hundred one thousand, one".