80201221011 has 48 divisors (see below), whose sum is σ = 129360067200. Its totient is φ = 49469263488.

The previous prime is 80201220997. The next prime is 80201221021. The reversal of 80201221011 is 11012210208.

It is not a de Polignac number, because 80201221011 - 2¹⁷ = 80201089939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80201221021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79200 + ... + 408258.

It is an arithmetic number, because the mean of its divisors is an integer number (2695001400).

Almost surely, 2^80201221011 is an apocalyptic number.

80201221011 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

80201221011 is a deficient number, since it is larger than the sum of its proper divisors (49158846189).

80201221011 is a wasteful number, since it uses less digits than its factorization.

80201221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329150 (or 329138 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 80201221011 its reverse (11012210208), we get a palindrome (91213431219).

The spelling of 80201221011 in words is "eighty billion, two hundred one million, two hundred twenty-one thousand, eleven".