80212131 has 6 divisors (see below), whose sum is σ = 115861980. Its totient is φ = 53474748.

The previous prime is 80212123. The next prime is 80212147. The reversal of 80212131 is 13121208.

It is not a de Polignac number, because 80212131 - 2³ = 80212123 is a prime.

It is a super-2 number, since 2×80212131² = 12867971919122322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80212331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4456221 + ... + 4456238.

It is an arithmetic number, because the mean of its divisors is an integer number (19310330).

Almost surely, 2^80212131 is an apocalyptic number.

80212131 is a deficient number, since it is larger than the sum of its proper divisors (35649849).

80212131 is a wasteful number, since it uses less digits than its factorization.

80212131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8912465 (or 8912462 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 80212131 is about 8956.1225427079. The cubic root of 80212131 is about 431.2674538620.

Adding to 80212131 its reverse (13121208), we get a palindrome (93333339).

The spelling of 80212131 in words is "eighty million, two hundred twelve thousand, one hundred thirty-one".