20212122202012 has 24 divisors (see below), whose sum is σ = 38092267873296. Its totient is φ = 9328624908288.

The previous prime is 20212122201949. The next prime is 20212122202081. The reversal of 20212122202012 is 21020222121202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10830483 + ... + 12558805.

It is an arithmetic number, because the mean of its divisors is an integer number (1587177828054).

Almost surely, 2^{20212122202012} is an apocalyptic number.

It is an amenable number.

20212122202012 is a deficient number, since it is larger than the sum of its proper divisors (17880145671284).

20212122202012 is a wasteful number, since it uses less digits than its factorization.

20212122202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953237 (or 1953235 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20212122202012 its reverse (21020222121202), we get a palindrome (41232344323214).

It can be divided in two parts, 2021212 and 2202012, that added together give a palindrome (4223224).

The spelling of 20212122202012 in words is "twenty trillion, two hundred twelve billion, one hundred twenty-two million, two hundred two thousand, twelve".