80212100 has 18 divisors (see below), whose sum is σ = 174060474. Its totient is φ = 32084800.

The previous prime is 80212087. The next prime is 80212123. The reversal of 80212100 is 121208.

It can be written as a sum of positive squares in 3 ways, for example, as 3334276 + 76877824 = 1826^2 + 8768^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 400961 + ... + 401160.

Almost surely, 2^80212100 is an apocalyptic number.

It is an amenable number.

80212100 is an abundant number, since it is smaller than the sum of its proper divisors (93848374).

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

80212100 is a wasteful number, since it uses less digits than its factorization.

80212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802135 (or 802128 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 80212100 is about 8956.1208120480. The cubic root of 80212100 is about 431.2673983039.

Adding to 80212100 its reverse (121208), we get a palindrome (80333308).

The spelling of 80212100 in words is "eighty million, two hundred twelve thousand, one hundred".