22121332112207 has 2 divisors, whose sum is σ = 22121332112208. Its totient is φ = 22121332112206.

The previous prime is 22121332112179. The next prime is 22121332112267. The reversal of 22121332112207 is 70221123312122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22121332112207 - 2²⁰ = 22121331063631 is a prime.

It is a super-2 number, since 2×22121332112207² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22121332112207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22121332112267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060666056103 + 11060666056104.

It is an arithmetic number, because the mean of its divisors is an integer number (11060666056104).

Almost surely, 2^{22121332112207} is an apocalyptic number.

22121332112207 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121332112207 is an equidigital number, since it uses as much as digits as its factorization.

22121332112207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 22121332112207 its reverse (70221123312122), we get a palindrome (92342455424329).

The spelling of 22121332112207 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred thirty-two million, one hundred twelve thousand, two hundred seven".