122213520545 has 16 divisors (see below), whose sum is σ = 155817743040. Its totient is φ = 91759322304.

The previous prime is 122213520529. The next prime is 122213520547. The reversal of 122213520545 is 545025312221.

It is not a de Polignac number, because 122213520545 - 2⁴ = 122213520529 is a prime.

It is a super-2 number, since 2×122213520545² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122213520547) 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, 6001322 + ... + 6021651.

It is an arithmetic number, because the mean of its divisors is an integer number (9738608940).

Almost surely, 2^122213520545 is an apocalyptic number.

It is an amenable number.

122213520545 is a deficient number, since it is larger than the sum of its proper divisors (33604222495).

122213520545 is a wasteful number, since it uses less digits than its factorization.

122213520545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12023104.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 122213520545 its reverse (545025312221), we get a palindrome (667238832766).

The spelling of 122213520545 in words is "one hundred twenty-two billion, two hundred thirteen million, five hundred twenty thousand, five hundred forty-five".