22202126214665 has 16 divisors (see below), whose sum is σ = 26665637216400. Its totient is φ = 17746311782400.

The previous prime is 22202126214661. The next prime is 22202126214707. The reversal of 22202126214665 is 56641262120222.

It can be written as a sum of positive squares in 8 ways, for example, as 292265659456 + 21909860555209 = 540616^2 + 4680797^2 .

It is not a de Polignac number, because 22202126214665 - 2² = 22202126214661 is a prime.

It is a super-2 number, since 2×22202126214665² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22202126214661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162407261 + ... + 162543909.

It is an arithmetic number, because the mean of its divisors is an integer number (1666602326025).

Almost surely, 2^{22202126214665} is an apocalyptic number.

It is an amenable number.

22202126214665 is a deficient number, since it is larger than the sum of its proper divisors (4463511001735).

22202126214665 is a wasteful number, since it uses less digits than its factorization.

22202126214665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164572.

The product of its (nonzero) digits is 276480, while the sum is 41.

Adding to 22202126214665 its reverse (56641262120222), we get a palindrome (78843388334887).

The spelling of 22202126214665 in words is "twenty-two trillion, two hundred two billion, one hundred twenty-six million, two hundred fourteen thousand, six hundred sixty-five".