20222121203012 has 12 divisors (see below), whose sum is σ = 35739095394156. Its totient is φ = 10010951090400.

The previous prime is 20222121202957. The next prime is 20222121203017. The reversal of 20222121203012 is 21030212122202.

It can be written as a sum of positive squares in 2 ways, for example, as 11834054084356 + 8388067118656 = 3440066^2 + 2896216^2 .

It is not an unprimeable number, because it can be changed into a prime (20222121203017) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25027377323 + ... + 25027378130.

It is an arithmetic number, because the mean of its divisors is an integer number (2978257949513).

Almost surely, 2^{20222121203012} is an apocalyptic number.

It is an amenable number.

20222121203012 is a deficient number, since it is larger than the sum of its proper divisors (15516974191144).

20222121203012 is a wasteful number, since it uses less digits than its factorization.

20222121203012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50054755558 (or 50054755556 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20222121203012 its reverse (21030212122202), we get a palindrome (41252333325214).

The spelling of 20222121203012 in words is "twenty trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred three thousand, twelve".