22212124409 has 4 divisors (see below), whose sum is σ = 22212531600. Its totient is φ = 22211717220.

The previous prime is 22212124393. The next prime is 22212124423. The reversal of 22212124409 is 90442121222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90442121222 = 2 ⋅45221060611.

It is a cyclic number.

It is not a de Polignac number, because 22212124409 - 2⁴ = 22212124393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22212114409) 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, 106259 + ... + 236040.

It is an arithmetic number, because the mean of its divisors is an integer number (5553132900).

Almost surely, 2^22212124409 is an apocalyptic number.

It is an amenable number.

22212124409 is a deficient number, since it is larger than the sum of its proper divisors (407191).

22212124409 is an equidigital number, since it uses as much as digits as its factorization.

22212124409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407190.

The product of its (nonzero) digits is 4608, while the sum is 29.

The spelling of 22212124409 in words is "twenty-two billion, two hundred twelve million, one hundred twenty-four thousand, four hundred nine".