12201005252015 has 32 divisors (see below), whose sum is σ = 16082452903680. Its totient is φ = 8844730875904.

The previous prime is 12201005251997. The next prime is 12201005252071. The reversal of 12201005252015 is 51025250010221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12201005252015 - 2⁸ = 12201005251759 is a prime.

It is a super-2 number, since 2×12201005252015² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6140759 + ... + 7881048.

It is an arithmetic number, because the mean of its divisors is an integer number (502576653240).

Almost surely, 2^{12201005252015} is an apocalyptic number.

12201005252015 is a deficient number, since it is larger than the sum of its proper divisors (3881447651665).

12201005252015 is a wasteful number, since it uses less digits than its factorization.

12201005252015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14022211.

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 12201005252015 its reverse (51025250010221), we get a palindrome (63226255262236).

The spelling of 12201005252015 in words is "twelve trillion, two hundred one billion, five million, two hundred fifty-two thousand, fifteen".