20210211120212 has 6 divisors (see below), whose sum is σ = 35367869460378. Its totient is φ = 10105105560104.

The previous prime is 20210211120191. The next prime is 20210211120241. The reversal of 20210211120212 is 21202111201202.

It can be written as a sum of positive squares in only one way, i.e., 12404244505156 + 7805966615056 = 3521966^2 + 2793916^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2526276390023 + ... + 2526276390030.

It is an arithmetic number, because the mean of its divisors is an integer number (5894644910063).

Almost surely, 2^{20210211120212} is an apocalyptic number.

It is an amenable number.

20210211120212 is a deficient number, since it is larger than the sum of its proper divisors (15157658340166).

20210211120212 is a wasteful number, since it uses less digits than its factorization.

20210211120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052552780057 (or 5052552780055 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20210211120212 its reverse (21202111201202), we get a palindrome (41412322321414).

The spelling of 20210211120212 in words is "twenty trillion, two hundred ten billion, two hundred eleven million, one hundred twenty thousand, two hundred twelve".