351222011 has 8 divisors (see below), whose sum is σ = 422522880. Its totient is φ = 285202728.

The previous prime is 351222007. The next prime is 351222013. The reversal of 351222011 is 110222153.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 351222011 - 2² = 351222007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351222013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320251 + ... + 1320516.

It is an arithmetic number, because the mean of its divisors is an integer number (52815360).

Almost surely, 2^351222011 is an apocalyptic number.

351222011 is a deficient number, since it is larger than the sum of its proper divisors (71300869).

351222011 is a wasteful number, since it uses less digits than its factorization.

351222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640793.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 351222011 is about 18740.9180938395. The cubic root of 351222011 is about 705.5490992343.

Adding to 351222011 its reverse (110222153), we get a palindrome (461444164).

The spelling of 351222011 in words is "three hundred fifty-one million, two hundred twenty-two thousand, eleven".