20221000001012 has 48 divisors (see below), whose sum is σ = 37271164425600. Its totient is φ = 9572725048320.

The previous prime is 20221000001009. The next prime is 20221000001029. The reversal of 20221000001012 is 21010000012202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20221000000984 and 20221000001002.

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 15 ways as a sum of consecutive naturals, for example, 1057518812 + ... + 1057537932.

It is an arithmetic number, because the mean of its divisors is an integer number (776482592200).

Almost surely, 2^{20221000001012} is an apocalyptic number.

It is an amenable number.

20221000001012 is a deficient number, since it is larger than the sum of its proper divisors (17050164424588).

20221000001012 is a wasteful number, since it uses less digits than its factorization.

20221000001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26616 (or 26614 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20221000001012 its reverse (21010000012202), we get a palindrome (41231000013214).

The spelling of 20221000001012 in words is "twenty trillion, two hundred twenty-one billion, one thousand, twelve".