20022002121012 has 12 divisors (see below), whose sum is σ = 46718004949056. Its totient is φ = 6674000707000.

The previous prime is 20022002121007. The next prime is 20022002121031. The reversal of 20022002121012 is 21012120022002.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 20022002120982 and 20022002121000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834250088364 + ... + 834250088387.

It is an arithmetic number, because the mean of its divisors is an integer number (3893167079088).

Almost surely, 2^{20022002121012} is an apocalyptic number.

It is an amenable number.

20022002121012 is an abundant number, since it is smaller than the sum of its proper divisors (26696002828044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20022002121012 is a wasteful number, since it uses less digits than its factorization.

20022002121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668500176758 (or 1668500176756 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20022002121012 its reverse (21012120022002), we get a palindrome (41034122143014).

The spelling of 20022002121012 in words is "twenty trillion, twenty-two billion, two million, one hundred twenty-one thousand, twelve".