212771026 has 16 divisors (see below), whose sum is σ = 345772224. Its totient is φ = 97611984.

The previous prime is 212771023. The next prime is 212771047. The reversal of 212771026 is 620177212.

It is a junction number, because it is equal to n+sod(n) for n = 212770985 and 212771003.

It is not an unprimeable number, because it can be changed into a prime (212771023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20160 + ... + 28843.

It is an arithmetic number, because the mean of its divisors is an integer number (21610764).

Almost surely, 2^212771026 is an apocalyptic number.

212771026 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

212771026 is a deficient number, since it is larger than the sum of its proper divisors (133001198).

212771026 is a wasteful number, since it uses less digits than its factorization.

212771026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49185.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 212771026 is about 14586.6728900048. The cubic root of 212771026 is about 596.9951862032.

It can be divided in two parts, 2127 and 71026, that added together give a triangular number (73153 = T₃₈₂).

The spelling of 212771026 in words is "two hundred twelve million, seven hundred seventy-one thousand, twenty-six".