2111201021212 has 12 divisors (see below), whose sum is σ = 3694960941840. Its totient is φ = 1055497894976.

The previous prime is 2111201021191. The next prime is 2111201021213. The reversal of 2111201021212 is 2121201021112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111201021213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25607608 + ... + 25689919.

It is an arithmetic number, because the mean of its divisors is an integer number (307913411820).

Almost surely, 2^{2111201021212} is an apocalyptic number.

It is an amenable number.

2111201021212 is a deficient number, since it is larger than the sum of its proper divisors (1583759920628).

2111201021212 is a wasteful number, since it uses less digits than its factorization.

2111201021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51307820 (or 51307818 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2111201021212 its reverse (2121201021112), we get a palindrome (4232402042324).

The spelling of 2111201021212 in words is "two trillion, one hundred eleven billion, two hundred one million, twenty-one thousand, two hundred twelve".