121142012141502 has 192 divisors, whose sum is σ = 320594717076480. Its totient is φ = 33746809662720.

The previous prime is 121142012141489. The next prime is 121142012141503. The reversal of 121142012141502 is 205141210241121.

It is a happy number.

121142012141502 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 4 + 2 + 0 + 12 + 141 + 502 = 666.

It is a super-3 number, since 3×121142012141502³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121142012141503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7905078 + ... + 17457785.

It is an arithmetic number, because the mean of its divisors is an integer number (1669764151440).

Almost surely, 2^{121142012141502} is an apocalyptic number.

121142012141502 is an abundant number, since it is smaller than the sum of its proper divisors (199452704934978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121142012141502 is a wasteful number, since it uses less digits than its factorization.

121142012141502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25362956 (or 25362939 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

Adding to 121142012141502 its reverse (205141210241121), we get a palindrome (326283222382623).

The spelling of 121142012141502 in words is "one hundred twenty-one trillion, one hundred forty-two billion, twelve million, one hundred forty-one thousand, five hundred two".