20211202011200 has 84 divisors (see below), whose sum is σ = 49756003873620. Its totient is φ = 8080609443840.

The previous prime is 20211202011193. The next prime is 20211202011241. The reversal of 20211202011200 is 211020211202.

It can be written as a sum of positive squares in 6 ways, for example, as 2365071424 + 20208836939776 = 48632^2 + 4495424^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 318944 + ... + 6365856.

Almost surely, 2^{20211202011200} is an apocalyptic number.

20211202011200 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 20211202011200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24878001936810).

20211202011200 is an abundant number, since it is smaller than the sum of its proper divisors (29544801862420).

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

20211202011200 is a wasteful number, since it uses less digits than its factorization.

20211202011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6049024 (or 6049009 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20211202011200 its reverse (211020211202), we get a palindrome (20422222222402).

The spelling of 20211202011200 in words is "twenty trillion, two hundred eleven billion, two hundred two million, eleven thousand, two hundred".