212040122244 has 24 divisors (see below), whose sum is σ = 500721254880. Its totient is φ = 69828473664.

The previous prime is 212040122221. The next prime is 212040122291. The reversal of 212040122244 is 442221040212.

It is a happy number.

It is a super-2 number, since 2×212040122244² (a number of 23 digits) contains 22 as substring.

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, 106444849 + ... + 106446840.

It is an arithmetic number, because the mean of its divisors is an integer number (20863385620).

Almost surely, 2^212040122244 is an apocalyptic number.

It is an amenable number.

212040122244 is an abundant number, since it is smaller than the sum of its proper divisors (288681132636).

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

212040122244 is a wasteful number, since it uses less digits than its factorization.

212040122244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212891779 (or 212891777 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 212040122244 its reverse (442221040212), we get a palindrome (654261162456).

The spelling of 212040122244 in words is "two hundred twelve billion, forty million, one hundred twenty-two thousand, two hundred forty-four".