22121079 has 8 divisors (see below), whose sum is σ = 30292080. Its totient is φ = 14348736.

The previous prime is 22121059. The next prime is 22121083. The reversal of 22121079 is 97012122.

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

It is not a de Polignac number, because 22121079 - 2⁷ = 22120951 is a prime.

It is a super-2 number, since 2×22121079² = 978684272248482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99534 + ... + 99755.

It is an arithmetic number, because the mean of its divisors is an integer number (3786510).

Almost surely, 2^22121079 is an apocalyptic number.

22121079 is a deficient number, since it is larger than the sum of its proper divisors (8171001).

22121079 is a wasteful number, since it uses less digits than its factorization.

22121079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199329.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 22121079 is about 4703.3051144913. The cubic root of 22121079 is about 280.7170355179.

The spelling of 22121079 in words is "twenty-two million, one hundred twenty-one thousand, seventy-nine".