122221135 has 4 divisors (see below), whose sum is σ = 146665368. Its totient is φ = 97776904.

The previous prime is 122221087. The next prime is 122221147. The reversal of 122221135 is 531122221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122221135 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12222109 + ... + 12222118.

It is an arithmetic number, because the mean of its divisors is an integer number (36666342).

Almost surely, 2^122221135 is an apocalyptic number.

122221135 is a deficient number, since it is larger than the sum of its proper divisors (24444233).

122221135 is an equidigital number, since it uses as much as digits as its factorization.

122221135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24444232.

The product of its digits is 240, while the sum is 19.

The square root of 122221135 is about 11055.3667962669. The cubic root of 122221135 is about 496.2670461356.

Adding to 122221135 its reverse (531122221), we get a palindrome (653343356).

The spelling of 122221135 in words is "one hundred twenty-two million, two hundred twenty-one thousand, one hundred thirty-five".