121226737 has 4 divisors (see below), whose sum is σ = 121387636. Its totient is φ = 121065840.

The previous prime is 121226731. The next prime is 121226747. The reversal of 121226737 is 737622121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 68823616 + 52403121 = 8296^2 + 7239^2 .

It is a cyclic number.

It is not a de Polignac number, because 121226737 - 2¹¹ = 121224689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121226699 and 121226708.

It is not an unprimeable number, because it can be changed into a prime (121226731) 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, 79314 + ... + 80827.

It is an arithmetic number, because the mean of its divisors is an integer number (30346909).

Almost surely, 2^121226737 is an apocalyptic number.

It is an amenable number.

121226737 is a deficient number, since it is larger than the sum of its proper divisors (160899).

121226737 is an equidigital number, since it uses as much as digits as its factorization.

121226737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160898.

The product of its digits is 7056, while the sum is 31.

The square root of 121226737 is about 11010.3014036856. The cubic root of 121226737 is about 494.9174939861.

Adding to 121226737 its reverse (737622121), we get a palindrome (858848858).

The spelling of 121226737 in words is "one hundred twenty-one million, two hundred twenty-six thousand, seven hundred thirty-seven".