212023323121211 has 16 divisors (see below), whose sum is σ = 242464746363840. Its totient is φ = 181619998156800.

The previous prime is 212023323121109. The next prime is 212023323121229. The reversal of 212023323121211 is 112121323320212.

It is not a de Polignac number, because 212023323121211 - 2⁴² = 207625276610107 is a prime.

It is a super-2 number, since 2×212023323121211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212023323121411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 810352811 + ... + 810614411.

It is an arithmetic number, because the mean of its divisors is an integer number (15154046647740).

Almost surely, 2^{212023323121211} is an apocalyptic number.

212023323121211 is a deficient number, since it is larger than the sum of its proper divisors (30441423242629).

212023323121211 is a wasteful number, since it uses less digits than its factorization.

212023323121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333974.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 212023323121211 its reverse (112121323320212), we get a palindrome (324144646441423).

The spelling of 212023323121211 in words is "two hundred twelve trillion, twenty-three billion, three hundred twenty-three million, one hundred twenty-one thousand, two hundred eleven".