512533200221 has 6 divisors (see below), whose sum is σ = 596212090110. Its totient is φ = 439314171576.

The previous prime is 512533200203. The next prime is 512533200227. The reversal of 512533200221 is 122002335215.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 432061694596 + 80471505625 = 657314^2 + 283675^2 .

It is not a de Polignac number, because 512533200221 - 2²² = 512529005917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512533200227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5229930566 + ... + 5229930663.

It is an arithmetic number, because the mean of its divisors is an integer number (99368681685).

Almost surely, 2^512533200221 is an apocalyptic number.

It is an amenable number.

512533200221 is a deficient number, since it is larger than the sum of its proper divisors (83678889889).

512533200221 is a wasteful number, since it uses less digits than its factorization.

512533200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10459861243 (or 10459861236 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 512533200221 its reverse (122002335215), we get a palindrome (634535535436).

The spelling of 512533200221 in words is "five hundred twelve billion, five hundred thirty-three million, two hundred thousand, two hundred twenty-one".