212224040403444 has 36 divisors (see below), whose sum is σ = 556323924846144. Its totient is φ = 70741346800824.

The previous prime is 212224040403391. The next prime is 212224040403451. The reversal of 212224040403444 is 444304040422212.

212224040403444 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 240 + 4 + 0 + 403 + 4 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×212224040403444² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 212224040403399 and 212224040403408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109168744092 + ... + 109168746035.

Almost surely, 2^{212224040403444} is an apocalyptic number.

It is an amenable number.

212224040403444 is an abundant number, since it is smaller than the sum of its proper divisors (344099884442700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212224040403444 is a wasteful number, since it uses less digits than its factorization.

212224040403444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218337490146 (or 218337490132 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 36.

Adding to 212224040403444 its reverse (444304040422212), we get a palindrome (656528080825656).

The spelling of 212224040403444 in words is "two hundred twelve trillion, two hundred twenty-four billion, forty million, four hundred three thousand, four hundred forty-four".