212420100321244 has 24 divisors (see below), whose sum is σ = 372627149369328. Its totient is φ = 105955212679680.

The previous prime is 212420100321229. The next prime is 212420100321259. The reversal of 212420100321244 is 442123001024212.

It is an interprime number because it is at equal distance from previous prime (212420100321229) and next prime (212420100321259).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69255567 + ... + 72257689.

It is an arithmetic number, because the mean of its divisors is an integer number (15526131223722).

Almost surely, 2^{212420100321244} is an apocalyptic number.

It is an amenable number.

212420100321244 is a deficient number, since it is larger than the sum of its proper divisors (160207049048084).

212420100321244 is a wasteful number, since it uses less digits than its factorization.

212420100321244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3044565 (or 3044563 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 212420100321244 its reverse (442123001024212), we get a palindrome (654543101345456).

The spelling of 212420100321244 in words is "two hundred twelve trillion, four hundred twenty billion, one hundred million, three hundred twenty-one thousand, two hundred forty-four".