121552002146 has 8 divisors (see below), whose sum is σ = 182734080300. Its totient is φ = 60640642048.

The previous prime is 121552002113. The next prime is 121552002191. The reversal of 121552002146 is 641200255121.

It can be written as a sum of positive squares in 2 ways, for example, as 120991969921 + 560032225 = 347839^2 + 23665^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67678391 + ... + 67680186.

Almost surely, 2^121552002146 is an apocalyptic number.

121552002146 is a deficient number, since it is larger than the sum of its proper divisors (61182078154).

121552002146 is a wasteful number, since it uses less digits than its factorization.

121552002146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135359028.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 121552002146 its reverse (641200255121), we get a palindrome (762752257267).

The spelling of 121552002146 in words is "one hundred twenty-one billion, five hundred fifty-two million, two thousand, one hundred forty-six".