212403350225 has 24 divisors (see below), whose sum is σ = 296592326400. Its totient is φ = 149492088000.

The previous prime is 212403350209. The next prime is 212403350249. The reversal of 212403350225 is 522053304212.

It is not a de Polignac number, because 212403350225 - 2⁴ = 212403350209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12449150 + ... + 12466199.

It is an arithmetic number, because the mean of its divisors is an integer number (12358013600).

Almost surely, 2^212403350225 is an apocalyptic number.

212403350225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212403350225 is a deficient number, since it is larger than the sum of its proper divisors (84188976175).

212403350225 is a wasteful number, since it uses less digits than its factorization.

212403350225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24915401 (or 24915396 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 212403350225 its reverse (522053304212), we get a palindrome (734456654437).

The spelling of 212403350225 in words is "two hundred twelve billion, four hundred three million, three hundred fifty thousand, two hundred twenty-five".