212242110044 has 24 divisors (see below), whose sum is σ = 387677165568. Its totient is φ = 101479696560.

The previous prime is 212242110023. The next prime is 212242110053. The reversal of 212242110044 is 440011242212.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 33389 + ... + 652379.

It is an arithmetic number, because the mean of its divisors is an integer number (16153215232).

Almost surely, 2^212242110044 is an apocalyptic number.

It is an amenable number.

212242110044 is a deficient number, since it is larger than the sum of its proper divisors (175435055524).

212242110044 is a wasteful number, since it uses less digits than its factorization.

212242110044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622745 (or 622743 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 212242110044 its reverse (440011242212), we get a palindrome (652253352256).

The spelling of 212242110044 in words is "two hundred twelve billion, two hundred forty-two million, one hundred ten thousand, forty-four".