351121226 has 4 divisors (see below), whose sum is σ = 526681842. Its totient is φ = 175560612.

The previous prime is 351121223. The next prime is 351121229. The reversal of 351121226 is 622121153.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 622121153 = 857 ⋅725929.

It is an interprime number because it is at equal distance from previous prime (351121223) and next prime (351121229).

It can be written as a sum of positive squares in only one way, i.e., 320374201 + 30747025 = 17899^2 + 5545^2 .

It is a super-2 number, since 2×351121226² = 246572230695486152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (351121223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87780305 + ... + 87780308.

Almost surely, 2^351121226 is an apocalyptic number.

351121226 is a deficient number, since it is larger than the sum of its proper divisors (175560616).

351121226 is a wasteful number, since it uses less digits than its factorization.

351121226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175560615.

The product of its digits is 720, while the sum is 23.

The square root of 351121226 is about 18738.2289984940. The cubic root of 351121226 is about 705.4816057720.

Adding to 351121226 its reverse (622121153), we get a palindrome (973242379).

The spelling of 351121226 in words is "three hundred fifty-one million, one hundred twenty-one thousand, two hundred twenty-six".