121010002210121 has 4 divisors (see below), whose sum is σ = 124913550668544. Its totient is φ = 117106453751700.

The previous prime is 121010002210103. The next prime is 121010002210151. The reversal of 121010002210121 is 121012200010121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121010002210121 - 2¹⁰ = 121010002209097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121010002210096 and 121010002210105.

It is not an unprimeable number, because it can be changed into a prime (121010002210151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1951774229165 + ... + 1951774229226.

It is an arithmetic number, because the mean of its divisors is an integer number (31228387667136).

Almost surely, 2^{121010002210121} is an apocalyptic number.

It is an amenable number.

121010002210121 is a deficient number, since it is larger than the sum of its proper divisors (3903548458423).

121010002210121 is an equidigital number, since it uses as much as digits as its factorization.

121010002210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903548458422.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121010002210121 its reverse (121012200010121), we get a palindrome (242022202220242).

The spelling of 121010002210121 in words is "one hundred twenty-one trillion, ten billion, two million, two hundred ten thousand, one hundred twenty-one".