12151523332201 has 4 divisors (see below), whose sum is σ = 13256207271504. Its totient is φ = 11046839392900.

The previous prime is 12151523332199. The next prime is 12151523332259. The reversal of 12151523332201 is 10223332515121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12151523332201 - 2¹ = 12151523332199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12151523332901) 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, 552341969635 + ... + 552341969656.

It is an arithmetic number, because the mean of its divisors is an integer number (3314051817876).

Almost surely, 2^{12151523332201} is an apocalyptic number.

12151523332201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12151523332201 is a deficient number, since it is larger than the sum of its proper divisors (1104683939303).

12151523332201 is a wasteful number, since it uses less digits than its factorization.

12151523332201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104683939302.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 12151523332201 its reverse (10223332515121), we get a palindrome (22374855847322).

The spelling of 12151523332201 in words is "twelve trillion, one hundred fifty-one billion, five hundred twenty-three million, three hundred thirty-two thousand, two hundred one".