121102121001 has 16 divisors (see below), whose sum is σ = 163127522880. Its totient is φ = 79906315200.

The previous prime is 121102120999. The next prime is 121102121033. The reversal of 121102121001 is 100121201121.

It is not a de Polignac number, because 121102121001 - 2¹ = 121102120999 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121102121081) 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 15 ways as a sum of consecutive naturals, for example, 778015 + ... + 920603.

It is an arithmetic number, because the mean of its divisors is an integer number (10195470180).

Almost surely, 2^121102121001 is an apocalyptic number.

It is an amenable number.

121102121001 is a deficient number, since it is larger than the sum of its proper divisors (42025401879).

121102121001 is a wasteful number, since it uses less digits than its factorization.

121102121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145496.

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

Adding to 121102121001 its reverse (100121201121), we get a palindrome (221223322122).

The spelling of 121102121001 in words is "one hundred twenty-one billion, one hundred two million, one hundred twenty-one thousand, one".