121452012152 has 32 divisors (see below), whose sum is σ = 229368419280. Its totient is φ = 60288238080.

The previous prime is 121452012131. The next prime is 121452012167. The reversal of 121452012152 is 251210254121.

It is a happy number.

It is a super-2 number, since 2×121452012152² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 787943 + ... + 929385.

Almost surely, 2^121452012152 is an apocalyptic number.

It is an amenable number.

121452012152 is a deficient number, since it is larger than the sum of its proper divisors (107916407128).

121452012152 is a wasteful number, since it uses less digits than its factorization.

121452012152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142223 (or 142219 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 121452012152 its reverse (251210254121), we get a palindrome (372662266273).

The spelling of 121452012152 in words is "one hundred twenty-one billion, four hundred fifty-two million, twelve thousand, one hundred fifty-two".