20201211200000 has 120 divisors (see below), whose sum is σ = 50450483595204. Its totient is φ = 8080483840000.

The previous prime is 20201211199999. The next prime is 20201211200011. The reversal of 20201211200000 is 211210202.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 8198922117376 + 12002289082624 = 2863376^2 + 3464432^2 .

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, 4712879 + ... + 7912878.

Almost surely, 2^{20201211200000} is an apocalyptic number.

20201211200000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201211200000 is an abundant number, since it is smaller than the sum of its proper divisors (30249272395204).

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

20201211200000 is an frugal number, since it uses more digits than its factorization.

20201211200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12625800 (or 12625764 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20201211200000 its reverse (211210202), we get a palindrome (20201422410202).

The spelling of 20201211200000 in words is "twenty trillion, two hundred one billion, two hundred eleven million, two hundred thousand".