2122420203452 has 24 divisors (see below), whose sum is σ = 3758585528880. Its totient is φ = 1048589617280.

The previous prime is 2122420203419. The next prime is 2122420203457. The reversal of 2122420203452 is 2543020242212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122420203457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6207449 + ... + 6540432.

It is an arithmetic number, because the mean of its divisors is an integer number (156607730370).

Almost surely, 2^{2122420203452} is an apocalyptic number.

It is an amenable number.

2122420203452 is a deficient number, since it is larger than the sum of its proper divisors (1636165325428).

2122420203452 is a wasteful number, since it uses less digits than its factorization.

2122420203452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12748381 (or 12748379 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 2122420203452 its reverse (2543020242212), we get a palindrome (4665440445664).

The spelling of 2122420203452 in words is "two trillion, one hundred twenty-two billion, four hundred twenty million, two hundred three thousand, four hundred fifty-two".