121201012201099 has 8 divisors (see below), whose sum is σ = 128335463617968. Its totient is φ = 114067114129920.

The previous prime is 121201012200973. The next prime is 121201012201121. The reversal of 121201012201099 is 990102210102121.

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 121201012201099 - 2¹¹ = 121201012199051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121201012201099.

It is not an unprimeable number, because it can be changed into a prime (121201012201499) 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, 137885422 + ... + 138761635.

It is an arithmetic number, because the mean of its divisors is an integer number (16041932952246).

Almost surely, 2^{121201012201099} is an apocalyptic number.

121201012201099 is a deficient number, since it is larger than the sum of its proper divisors (7134451416869).

121201012201099 is a wasteful number, since it uses less digits than its factorization.

121201012201099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276672845.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 121201012201099 in words is "one hundred twenty-one trillion, two hundred one billion, twelve million, two hundred one thousand, ninety-nine".