121226221637284 has 9 divisors (see below), whose sum is σ = 212145926401227. Its totient is φ = 60613099808364.

The previous prime is 121226221637263. The next prime is 121226221637329. The reversal of 121226221637284 is 482736122622121.

The square root of 121226221637284 is 11010278.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 19267987 + ... + 24773125.

Almost surely, 2^{121226221637284} is an apocalyptic number.

121226221637284 is the 11010278-th square number.

It is an amenable number.

121226221637284 is a deficient number, since it is larger than the sum of its proper divisors (90919704763943).

121226221637284 is an frugal number, since it uses more digits than its factorization.

121226221637284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11010282 (or 5505141 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 49.

The spelling of 121226221637284 in words is "one hundred twenty-one trillion, two hundred twenty-six billion, two hundred twenty-one million, six hundred thirty-seven thousand, two hundred eighty-four".