120721226 has 8 divisors (see below), whose sum is σ = 181143264. Its totient is φ = 60340140.

The previous prime is 120721219. The next prime is 120721241. The reversal of 120721226 is 622127021.

It is a happy number.

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

It is a super-2 number, since 2×120721226² = 29147228813886152, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1310 + ... + 15593.

It is an arithmetic number, because the mean of its divisors is an integer number (22642908).

Almost surely, 2^120721226 is an apocalyptic number.

120721226 is a deficient number, since it is larger than the sum of its proper divisors (60422038).

120721226 is a wasteful number, since it uses less digits than its factorization.

120721226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20476.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 120721226 is about 10987.3211475773. The cubic root of 120721226 is about 494.2286063497.

Adding to 120721226 its reverse (622127021), we get a palindrome (742848247).

The spelling of 120721226 in words is "one hundred twenty million, seven hundred twenty-one thousand, two hundred twenty-six".