20012102201200 has 120 divisors (see below), whose sum is σ = 48901302080640. Its totient is φ = 7868128588800.

The previous prime is 20012102201197. The next prime is 20012102201251. The reversal of 20012102201200 is 210220121002.

It is a happy number.

It is a super-2 number, since 2×20012102201200² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34826622 + ... + 35396578.

It is an arithmetic number, because the mean of its divisors is an integer number (407510850672).

Almost surely, 2^{20012102201200} is an apocalyptic number.

20012102201200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20012102201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24450651040320).

20012102201200 is an abundant number, since it is smaller than the sum of its proper divisors (28889199879440).

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

20012102201200 is a wasteful number, since it uses less digits than its factorization.

20012102201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571475 (or 571464 counting only the distinct ones).

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

Adding to 20012102201200 its reverse (210220121002), we get a palindrome (20222322322202).

The spelling of 20012102201200 in words is "twenty trillion, twelve billion, one hundred two million, two hundred one thousand, two hundred".