20021020022012 has 6 divisors (see below), whose sum is σ = 35036785038528. Its totient is φ = 10010510011004.

The previous prime is 20021020021999. The next prime is 20021020022021. The reversal of 20021020022012 is 21022002012002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2502627502748 + ... + 2502627502755.

It is an arithmetic number, because the mean of its divisors is an integer number (5839464173088).

Almost surely, 2^{20021020022012} is an apocalyptic number.

It is an amenable number.

20021020022012 is a deficient number, since it is larger than the sum of its proper divisors (15015765016516).

20021020022012 is a wasteful number, since it uses less digits than its factorization.

20021020022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005255005507 (or 5005255005505 counting only the distinct ones).

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

Adding to 20021020022012 its reverse (21022002012002), we get a palindrome (41043022034014).

The spelling of 20021020022012 in words is "twenty trillion, twenty-one billion, twenty million, twenty-two thousand, twelve".