64133201121 has 16 divisors (see below), whose sum is σ = 93534767040. Its totient is φ = 38764393920.

The previous prime is 64133201117. The next prime is 64133201123. The reversal of 64133201121 is 12110233146.

It is a happy number.

It is not a de Polignac number, because 64133201121 - 2² = 64133201117 is a prime.

It is a super-2 number, since 2×64133201121² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64133201091 and 64133201100.

It is not an unprimeable number, because it can be changed into a prime (64133201123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2592826 + ... + 2617443.

It is an arithmetic number, because the mean of its divisors is an integer number (5845922940).

Almost surely, 2^64133201121 is an apocalyptic number.

It is an amenable number.

64133201121 is a deficient number, since it is larger than the sum of its proper divisors (29401565919).

64133201121 is a wasteful number, since it uses less digits than its factorization.

64133201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5210656.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 64133201121 its reverse (12110233146), we get a palindrome (76243434267).

The spelling of 64133201121 in words is "sixty-four billion, one hundred thirty-three million, two hundred one thousand, one hundred twenty-one".