20001222022012 has 48 divisors (see below), whose sum is σ = 44129356104960. Its totient is φ = 7705125648000.

The previous prime is 20001222022003. The next prime is 20001222022139. The reversal of 20001222022012 is 21022022210002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364798614 + ... + 364853437.

It is an arithmetic number, because the mean of its divisors is an integer number (919361585520).

Almost surely, 2^{20001222022012} is an apocalyptic number.

20001222022012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20001222022012 is an abundant number, since it is smaller than the sum of its proper divisors (24128134082948).

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

20001222022012 is a wasteful number, since it uses less digits than its factorization.

20001222022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729652162 (or 729652160 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20001222022012 its reverse (21022022210002), we get a palindrome (41023244232014).

The spelling of 20001222022012 in words is "twenty trillion, one billion, two hundred twenty-two million, twenty-two thousand, twelve".