121142134221202 has 8 divisors (see below), whose sum is σ = 181713294904176. Its totient is φ = 60571035919812.

The previous prime is 121142134221193. The next prime is 121142134221203. The reversal of 121142134221202 is 202122431241121.

It is a happy number.

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

It is a super-3 number, since 3×121142134221202³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121142134221203) 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, 10393488 + ... + 18716539.

It is an arithmetic number, because the mean of its divisors is an integer number (22714161863022).

Almost surely, 2^{121142134221202} is an apocalyptic number.

121142134221202 is a deficient number, since it is larger than the sum of its proper divisors (60571160682974).

121142134221202 is a wasteful number, since it uses less digits than its factorization.

121142134221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31190792.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 121142134221202 its reverse (202122431241121), we get a palindrome (323264565462323).

The spelling of 121142134221202 in words is "one hundred twenty-one trillion, one hundred forty-two billion, one hundred thirty-four million, two hundred twenty-one thousand, two hundred two".