122909221 has 8 divisors (see below), whose sum is σ = 128066400. Its totient is φ = 117813360.

The previous prime is 122909219. The next prime is 122909239.

122909221 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 122909221 - 2¹ = 122909219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122909221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122909261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11215 + ... + 19276.

It is an arithmetic number, because the mean of its divisors is an integer number (16008300).

Almost surely, 2^122909221 is an apocalyptic number.

It is an amenable number.

122909221 is a deficient number, since it is larger than the sum of its proper divisors (5157179).

122909221 is a wasteful number, since it uses less digits than its factorization.

122909221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30659.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 122909221 is about 11086.4431176099. The cubic root of 122909221 is about 497.1966060068.

The spelling of 122909221 in words is "one hundred twenty-two million, nine hundred nine thousand, two hundred twenty-one".