212124213042430 has 128 divisors (see below), whose sum is σ = 438465712059648. Its totient is φ = 73285780119552.

The previous prime is 212124213042403. The next prime is 212124213042431. The reversal of 212124213042430 is 34240312421212.

It is a junction number, because it is equal to n+sod(n) for n = 212124213042392 and 212124213042401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212124213042431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51418372 + ... + 55390408.

It is an arithmetic number, because the mean of its divisors is an integer number (3425513375466).

Almost surely, 2^{212124213042430} is an apocalyptic number.

212124213042430 is an abundant number, since it is smaller than the sum of its proper divisors (226341499017218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212124213042430 is a wasteful number, since it uses less digits than its factorization.

212124213042430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972470.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 212124213042430 its reverse (34240312421212), we get a palindrome (246364525463642).

The spelling of 212124213042430 in words is "two hundred twelve trillion, one hundred twenty-four billion, two hundred thirteen million, forty-two thousand, four hundred thirty".