212520026 has 16 divisors (see below), whose sum is σ = 337875624. Its totient is φ = 99907584.

The previous prime is 212520001. The next prime is 212520029. The reversal of 212520026 is 620025212.

212520026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 169026001 + 43494025 = 13001^2 + 6595^2 .

It is a super-2 number, since 2×212520026² = 90329522902081352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212520029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38666 + ... + 43818.

Almost surely, 2^212520026 is an apocalyptic number.

212520026 is a deficient number, since it is larger than the sum of its proper divisors (125355598).

212520026 is a wasteful number, since it uses less digits than its factorization.

212520026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6385.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 212520026 is about 14578.0666070642. The cubic root of 212520026 is about 596.7603410175.

Adding to 212520026 its reverse (620025212), we get a palindrome (832545238).

The spelling of 212520026 in words is "two hundred twelve million, five hundred twenty thousand, twenty-six".