20222021012 has 12 divisors (see below), whose sum is σ = 35406707700. Its totient is φ = 10105818816.

The previous prime is 20222021009. The next prime is 20222021161. The reversal of 20222021012 is 21012022202.

It can be written as a sum of positive squares in 2 ways, for example, as 9847783696 + 10374237316 = 99236^2 + 101854^2 .

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 3 ways as a sum of consecutive naturals, for example, 1289153 + ... + 1304744.

It is an arithmetic number, because the mean of its divisors is an integer number (2950558975).

Almost surely, 2^20222021012 is an apocalyptic number.

It is an amenable number.

20222021012 is a deficient number, since it is larger than the sum of its proper divisors (15184686688).

20222021012 is a wasteful number, since it uses less digits than its factorization.

20222021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595850 (or 2595848 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20222021012 its reverse (21012022202), we get a palindrome (41234043214).

The spelling of 20222021012 in words is "twenty billion, two hundred twenty-two million, twenty-one thousand, twelve".