121002012021201 has 8 divisors (see below), whose sum is σ = 161351362404960. Its totient is φ = 80660334825792.

The previous prime is 121002012021181. The next prime is 121002012021257. The reversal of 121002012021201 is 102120210200121.

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

It is not a de Polignac number, because 121002012021201 - 2¹⁷ = 121002011890129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121002012021271) 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, 1918260291 + ... + 1918323368.

It is an arithmetic number, because the mean of its divisors is an integer number (20168920300620).

Almost surely, 2^{121002012021201} is an apocalyptic number.

It is an amenable number.

121002012021201 is a deficient number, since it is larger than the sum of its proper divisors (40349350383759).

121002012021201 is a wasteful number, since it uses less digits than its factorization.

121002012021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3836594175.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121002012021201 its reverse (102120210200121), we get a palindrome (223122222221322).

The spelling of 121002012021201 in words is "one hundred twenty-one trillion, two billion, twelve million, twenty-one thousand, two hundred one".