121221323122121 has 8 divisors (see below), whose sum is σ = 122426923172544. Its totient is φ = 120015828737200.

The previous prime is 121221323122069. The next prime is 121221323122127.

121221323122121 is nontrivially palindromic in base 10.

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-121221323122121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121221323122127) 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, 24109535 + ... + 28700388.

It is an arithmetic number, because the mean of its divisors is an integer number (15303365396568).

Almost surely, 2^{121221323122121} is an apocalyptic number.

It is an amenable number.

121221323122121 is a deficient number, since it is larger than the sum of its proper divisors (1205600050423).

121221323122121 is a wasteful number, since it uses less digits than its factorization.

121221323122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52832751.

The product of its digits is 1152, while the sum is 26.

The spelling of 121221323122121 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, three hundred twenty-three million, one hundred twenty-two thousand, one hundred twenty-one".