212435542233225 has 120 divisors (see below), whose sum is σ = 418485061665440. Its totient is φ = 106229295866880.

The previous prime is 212435542233221. The next prime is 212435542233241. The reversal of 212435542233225 is 522332245534212.

212435542233225 is a `hidden beast` number, since 2 + 1 + 2 + 4 + 35 + 542 + 23 + 32 + 25 = 666.

It is not a de Polignac number, because 212435542233225 - 2² = 212435542233221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (212435542233221) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 24728707 + ... + 32192856.

Almost surely, 2^{212435542233225} is an apocalyptic number.

212435542233225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212435542233225 is a deficient number, since it is larger than the sum of its proper divisors (206049519432215).

212435542233225 is a wasteful number, since it uses less digits than its factorization.

212435542233225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56921701 (or 56921687 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 45.

Adding to 212435542233225 its reverse (522332245534212), we get a palindrome (734767787767437).

The spelling of 212435542233225 in words is "two hundred twelve trillion, four hundred thirty-five billion, five hundred forty-two million, two hundred thirty-three thousand, two hundred twenty-five".