65220101120 has 44 divisors (see below), whose sum is σ = 156451825164. Its totient is φ = 26088038400.

The previous prime is 65220101113. The next prime is 65220101123. The reversal of 65220101120 is 2110102256.

It can be written as a sum of positive squares in 2 ways, for example, as 10231727104 + 54988374016 = 101152^2 + 234496^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 65220101092 and 65220101101.

It is not an unprimeable number, because it can be changed into a prime (65220101123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6364031 + ... + 6374270.

Almost surely, 2^65220101120 is an apocalyptic number.

It is an amenable number.

65220101120 is an abundant number, since it is smaller than the sum of its proper divisors (91231724044).

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

65220101120 is a wasteful number, since it uses less digits than its factorization.

65220101120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12738326 (or 12738308 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 65220101120 its reverse (2110102256), we get a palindrome (67330203376).

The spelling of 65220101120 in words is "sixty-five billion, two hundred twenty million, one hundred one thousand, one hundred twenty".