212443111011412 has 12 divisors (see below), whose sum is σ = 371917941583860. Its totient is φ = 106180841987456.

The previous prime is 212443111011389. The next prime is 212443111011457. The reversal of 212443111011412 is 214110111344212.

It can be written as a sum of positive squares in 2 ways, for example, as 54021970801296 + 158421140210116 = 7349964^2 + 12586546^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10178367823 + ... + 10178388694.

It is an arithmetic number, because the mean of its divisors is an integer number (30993161798655).

Almost surely, 2^{212443111011412} is an apocalyptic number.

It is an amenable number.

212443111011412 is a deficient number, since it is larger than the sum of its proper divisors (159474830572448).

212443111011412 is a wasteful number, since it uses less digits than its factorization.

212443111011412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20356759130 (or 20356759128 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

Adding to 212443111011412 its reverse (214110111344212), we get a palindrome (426553222355624).

The spelling of 212443111011412 in words is "two hundred twelve trillion, four hundred forty-three billion, one hundred eleven million, eleven thousand, four hundred twelve".