65522215122 has 64 divisors (see below), whose sum is σ = 169774187520. Its totient is φ = 16371077184.

The previous prime is 65522215117. The next prime is 65522215127. The reversal of 65522215122 is 22151222556.

It is a happy number.

65522215122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (65522215117) and next prime (65522215127).

It is not an unprimeable number, because it can be changed into a prime (65522215127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3147628 + ... + 3168375.

It is an arithmetic number, because the mean of its divisors is an integer number (2652721680).

Almost surely, 2^65522215122 is an apocalyptic number.

65522215122 is an abundant number, since it is smaller than the sum of its proper divisors (104251972398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65522215122 is a wasteful number, since it uses less digits than its factorization.

65522215122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6316047.

The product of its digits is 24000, while the sum is 33.

Adding to 65522215122 its reverse (22151222556), we get a palindrome (87673437678).

The spelling of 65522215122 in words is "sixty-five billion, five hundred twenty-two million, two hundred fifteen thousand, one hundred twenty-two".