121210011202121 has 8 divisors (see below), whose sum is σ = 121827963264000. Its totient is φ = 120592147705920.

The previous prime is 121210011202087. The next prime is 121210011202243. The reversal of 121210011202121 is 121202110012121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121210011202121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121210011202121.

It is not an unprimeable number, because it can be changed into a prime (121210011202321) 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, 19396400 + ... + 24872481.

It is an arithmetic number, because the mean of its divisors is an integer number (15228495408000).

Almost surely, 2^{121210011202121} is an apocalyptic number.

It is an amenable number.

121210011202121 is a deficient number, since it is larger than the sum of its proper divisors (617952061879).

121210011202121 is a wasteful number, since it uses less digits than its factorization.

121210011202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44282839.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121210011202121 its reverse (121202110012121), we get a palindrome (242412121214242).

The spelling of 121210011202121 in words is "one hundred twenty-one trillion, two hundred ten billion, eleven million, two hundred two thousand, one hundred twenty-one".