20212100201212 has 24 divisors (see below), whose sum is σ = 35525220219216. Its totient is φ = 10062042745728.

The previous prime is 20212100201201. The next prime is 20212100201221. The reversal of 20212100201212 is 21210200121202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14299558 + ... + 15649330.

It is an arithmetic number, because the mean of its divisors is an integer number (1480217509134).

Almost surely, 2^{20212100201212} is an apocalyptic number.

It is an amenable number.

20212100201212 is a deficient number, since it is larger than the sum of its proper divisors (15313120018004).

20212100201212 is a wasteful number, since it uses less digits than its factorization.

20212100201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366077 (or 1366075 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20212100201212 its reverse (21210200121202), we get a palindrome (41422300322414).

The spelling of 20212100201212 in words is "twenty trillion, two hundred twelve billion, one hundred million, two hundred one thousand, two hundred twelve".