121100202011001 has 8 divisors (see below), whose sum is σ = 161591045886144. Its totient is φ = 80671413071600.

The previous prime is 121100202010987. The next prime is 121100202011011. The reversal of 121100202011001 is 100110202001121.

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 121100202011001 - 2¹³ = 121100202002809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121100202011011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15513729381 + ... + 15513737186.

It is an arithmetic number, because the mean of its divisors is an integer number (20198880735768).

Almost surely, 2^{121100202011001} is an apocalyptic number.

It is an amenable number.

121100202011001 is a deficient number, since it is larger than the sum of its proper divisors (40490843875143).

121100202011001 is a wasteful number, since it uses less digits than its factorization.

121100202011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31027467871.

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

Adding to 121100202011001 its reverse (100110202001121), we get a palindrome (221210404012122).

The spelling of 121100202011001 in words is "one hundred twenty-one trillion, one hundred billion, two hundred two million, eleven thousand, one".