105220730436 has 12 divisors (see below), whose sum is σ = 245515037712. Its totient is φ = 35073576808.

The previous prime is 105220730399. The next prime is 105220730443. The reversal of 105220730436 is 634037022501.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×105220730436² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105220730397 and 105220730406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4384197090 + ... + 4384197113.

It is an arithmetic number, because the mean of its divisors is an integer number (20459586476).

Almost surely, 2^105220730436 is an apocalyptic number.

It is an amenable number.

105220730436 is an abundant number, since it is smaller than the sum of its proper divisors (140294307276).

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

105220730436 is a wasteful number, since it uses less digits than its factorization.

105220730436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8768394210 (or 8768394208 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

Adding to 105220730436 its reverse (634037022501), we get a palindrome (739257752937).

The spelling of 105220730436 in words is "one hundred five billion, two hundred twenty million, seven hundred thirty thousand, four hundred thirty-six".