121011002121001 has 8 divisors (see below), whose sum is σ = 121074867113760. Its totient is φ = 120947149046592.

The previous prime is 121011002120977. The next prime is 121011002121059. The reversal of 121011002121001 is 100121200110121.

It is a happy number.

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 121011002121001 - 2⁴¹ = 118811978865449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121011002121101) 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, 17369086 + ... + 23317528.

It is an arithmetic number, because the mean of its divisors is an integer number (15134358389220).

Almost surely, 2^{121011002121001} is an apocalyptic number.

It is an amenable number.

121011002121001 is a deficient number, since it is larger than the sum of its proper divisors (63864992759).

121011002121001 is an equidigital number, since it uses as much as digits as its factorization.

121011002121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5959175.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121011002121001 its reverse (100121200110121), we get a palindrome (221132202231122).

The spelling of 121011002121001 in words is "one hundred twenty-one trillion, eleven billion, two million, one hundred twenty-one thousand, one".