122282921 has 4 divisors (see below), whose sum is σ = 129476052. Its totient is φ = 115089792.

The previous prime is 122282903. The next prime is 122282977. The reversal of 122282921 is 129282221.

It is a happy number.

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 50694400 + 71588521 = 7120^2 + 8461^2 .

It is a cyclic number.

It is not a de Polignac number, because 122282921 - 2¹⁰ = 122281897 is a prime.

It is a super-3 number, since 3×122282921³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122282981) 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, 3596540 + ... + 3596573.

It is an arithmetic number, because the mean of its divisors is an integer number (32369013).

Almost surely, 2^122282921 is an apocalyptic number.

It is an amenable number.

122282921 is a deficient number, since it is larger than the sum of its proper divisors (7193131).

122282921 is an equidigital number, since it uses as much as digits as its factorization.

122282921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7193130.

The product of its digits is 2304, while the sum is 29.

The square root of 122282921 is about 11058.1608326159. The cubic root of 122282921 is about 496.3506573983.

The spelling of 122282921 in words is "one hundred twenty-two million, two hundred eighty-two thousand, nine hundred twenty-one".