212021310044 has 12 divisors (see below), whose sum is σ = 387169348944. Its totient is φ = 101401496064.

The previous prime is 212021310019. The next prime is 212021310101. The reversal of 212021310044 is 440013120212.

It is a junction number, because it is equal to n+sod(n) for n = 212021309998 and 212021310025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1152289637 + ... + 1152289820.

It is an arithmetic number, because the mean of its divisors is an integer number (32264112412).

Almost surely, 2^212021310044 is an apocalyptic number.

It is an amenable number.

212021310044 is a deficient number, since it is larger than the sum of its proper divisors (175148038900).

212021310044 is a wasteful number, since it uses less digits than its factorization.

212021310044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304579484 (or 2304579482 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 212021310044 its reverse (440013120212), we get a palindrome (652034430256).

The spelling of 212021310044 in words is "two hundred twelve billion, twenty-one million, three hundred ten thousand, forty-four".