20011220096 has 32 divisors (see below), whose sum is σ = 45561262080. Its totient is φ = 8576236800.

The previous prime is 20011220093. The next prime is 20011220113. The reversal of 20011220096 is 69002211002.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (20011220093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11166080 + ... + 11167871.

It is an arithmetic number, because the mean of its divisors is an integer number (1423789440).

Almost surely, 2^20011220096 is an apocalyptic number.

It is an amenable number.

20011220096 is an abundant number, since it is smaller than the sum of its proper divisors (25550041984).

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

20011220096 is an equidigital number, since it uses as much as digits as its factorization.

20011220096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22333972 (or 22333960 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 20011220096 its reverse (69002211002), we get a palindrome (89013431098).

The spelling of 20011220096 in words is "twenty billion, eleven million, two hundred twenty thousand, ninety-six".