20212103446 has 16 divisors (see below), whose sum is σ = 30579975360. Its totient is φ = 10018932040.

The previous prime is 20212103411. The next prime is 20212103459. The reversal of 20212103446 is 64430121202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20212103446.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229125 + ... + 304831.

It is an arithmetic number, because the mean of its divisors is an integer number (1911248460).

Almost surely, 2^20212103446 is an apocalyptic number.

20212103446 is a deficient number, since it is larger than the sum of its proper divisors (10367871914).

20212103446 is a wasteful number, since it uses less digits than its factorization.

20212103446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76859.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20212103446 its reverse (64430121202), we get a palindrome (84642224648).

The spelling of 20212103446 in words is "twenty billion, two hundred twelve million, one hundred three thousand, four hundred forty-six".