212295170026 has 32 divisors (see below), whose sum is σ = 346492257552. Its totient is φ = 97146040320.

The previous prime is 212295170023. The next prime is 212295170081. The reversal of 212295170026 is 620071592212.

It is a Cunningham number, because it is equal to 460755²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 165282089401 + 47013080625 = 406549^2 + 216825^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (212295170023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2115990 + ... + 2214046.

Almost surely, 2^212295170026 is an apocalyptic number.

212295170026 is a deficient number, since it is larger than the sum of its proper divisors (134197087526).

212295170026 is a wasteful number, since it uses less digits than its factorization.

212295170026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99834.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 212295170026 in words is "two hundred twelve billion, two hundred ninety-five million, one hundred seventy thousand, twenty-six".