351200221313321 has 16 divisors (see below), whose sum is σ = 364136360837760. Its totient is φ = 338446643414400.

The previous prime is 351200221313309. The next prime is 351200221313351. The reversal of 351200221313321 is 123313122002153.

It is a cyclic number.

It is not a de Polignac number, because 351200221313321 - 2³⁰ = 351199147571497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (351200221313351) 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, 10745996 + ... + 28598546.

It is an arithmetic number, because the mean of its divisors is an integer number (22758522552360).

Almost surely, 2^{351200221313321} is an apocalyptic number.

It is an amenable number.

351200221313321 is a deficient number, since it is larger than the sum of its proper divisors (12936139524439).

351200221313321 is a wasteful number, since it uses less digits than its factorization.

351200221313321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17857664.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 351200221313321 its reverse (123313122002153), we get a palindrome (474513343315474).

The spelling of 351200221313321 in words is "three hundred fifty-one trillion, two hundred billion, two hundred twenty-one million, three hundred thirteen thousand, three hundred twenty-one".