122217266465 has 16 divisors (see below), whose sum is σ = 167630905728. Its totient is φ = 83796798336.

The previous prime is 122217266459. The next prime is 122217266491. The reversal of 122217266465 is 564662712221.

It is a cyclic number.

It is not a de Polignac number, because 122217266465 - 2⁴ = 122217266449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132389 + ... + 511821.

It is an arithmetic number, because the mean of its divisors is an integer number (10476931608).

Almost surely, 2^122217266465 is an apocalyptic number.

It is an amenable number.

122217266465 is a deficient number, since it is larger than the sum of its proper divisors (45413639263).

122217266465 is an equidigital number, since it uses as much as digits as its factorization.

122217266465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388648.

The product of its digits is 483840, while the sum is 44.

Adding to 122217266465 its reverse (564662712221), we get a palindrome (686879978686).

The spelling of 122217266465 in words is "one hundred twenty-two billion, two hundred seventeen million, two hundred sixty-six thousand, four hundred sixty-five".