351222133545331 has 4 divisors (see below), whose sum is σ = 351224928712600. Its totient is φ = 351219338378064.

The previous prime is 351222133545319. The next prime is 351222133545443. The reversal of 351222133545331 is 133545331222153.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 351222133545331 - 2¹⁹ = 351222133021043 is a prime.

It is a super-2 number, since 2×351222133545331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351222133545301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1397395146 + ... + 1397646463.

It is an arithmetic number, because the mean of its divisors is an integer number (87806232178150).

Almost surely, 2^{351222133545331} is an apocalyptic number.

351222133545331 is a deficient number, since it is larger than the sum of its proper divisors (2795167269).

351222133545331 is a wasteful number, since it uses less digits than its factorization.

351222133545331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795167268.

The product of its digits is 972000, while the sum is 43.

Adding to 351222133545331 its reverse (133545331222153), we get a palindrome (484767464767484).

The spelling of 351222133545331 in words is "three hundred fifty-one trillion, two hundred twenty-two billion, one hundred thirty-three million, five hundred forty-five thousand, three hundred thirty-one".