20122010021200 has 30 divisors (see below), whose sum is σ = 48343129076894. Its totient is φ = 8048804008320.

The previous prime is 20122010021149. The next prime is 20122010021207. The reversal of 20122010021200 is 212001022102.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6952165796416 + 13169844224784 = 2636696^2 + 3629028^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122010021207) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 25152512127 + ... + 25152512926.

Almost surely, 2^{20122010021200} is an apocalyptic number.

20122010021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122010021200 is an abundant number, since it is smaller than the sum of its proper divisors (28221119055694).

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

20122010021200 is a wasteful number, since it uses less digits than its factorization.

20122010021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50305025071 (or 50305025060 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20122010021200 its reverse (212001022102), we get a palindrome (20334011043302).

The spelling of 20122010021200 in words is "twenty trillion, one hundred twenty-two billion, ten million, twenty-one thousand, two hundred".