121140142202 has 8 divisors (see below), whose sum is σ = 191273908800. Its totient is φ = 57382172604.

The previous prime is 121140142171. The next prime is 121140142313. The reversal of 121140142202 is 202241041121.

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

It is a super-3 number, since 3×121140142202³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1593949202 + ... + 1593949277.

It is an arithmetic number, because the mean of its divisors is an integer number (23909238600).

Almost surely, 2^121140142202 is an apocalyptic number.

121140142202 is a deficient number, since it is larger than the sum of its proper divisors (70133766598).

121140142202 is a wasteful number, since it uses less digits than its factorization.

121140142202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3187898500.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121140142202 its reverse (202241041121), we get a palindrome (323381183323).

The spelling of 121140142202 in words is "one hundred twenty-one billion, one hundred forty million, one hundred forty-two thousand, two hundred two".