212880771 has 16 divisors (see below), whose sum is σ = 317320320. Its totient is φ = 141046920.

The previous prime is 212880763. The next prime is 212880779. The reversal of 212880771 is 177088212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212880763) and next prime (212880779).

It is not a de Polignac number, because 212880771 - 2³ = 212880763 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (212880779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19785 + ... + 28586.

It is an arithmetic number, because the mean of its divisors is an integer number (19832520).

Almost surely, 2^212880771 is an apocalyptic number.

212880771 is a deficient number, since it is larger than the sum of its proper divisors (104439549).

212880771 is a wasteful number, since it uses less digits than its factorization.

212880771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48543 (or 48537 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 212880771 is about 14590.4342293161. The cubic root of 212880771 is about 597.0978097869.

The spelling of 212880771 in words is "two hundred twelve million, eight hundred eighty thousand, seven hundred seventy-one".