20320111221010 has 32 divisors (see below), whose sum is σ = 37797372055872. Its totient is φ = 7860416020800.

The previous prime is 20320111220951. The next prime is 20320111221013. The reversal of 20320111221010 is 1012211102302.

It is not an unprimeable number, because it can be changed into a prime (20320111221013) 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, 233897524 + ... + 233984383.

It is an arithmetic number, because the mean of its divisors is an integer number (1181167876746).

Almost surely, 2^{20320111221010} is an apocalyptic number.

20320111221010 is a deficient number, since it is larger than the sum of its proper divisors (17477260834862).

20320111221010 is a wasteful number, since it uses less digits than its factorization.

20320111221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467882058.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20320111221010 its reverse (1012211102302), we get a palindrome (21332322323312).

The spelling of 20320111221010 in words is "twenty trillion, three hundred twenty billion, one hundred eleven million, two hundred twenty-one thousand, ten".