212311223130 has 16 divisors (see below), whose sum is σ = 509546935584. Its totient is φ = 56616326160.

The previous prime is 212311223101. The next prime is 212311223141. The reversal of 212311223130 is 31322113212.

It is a junction number, because it is equal to n+sod(n) for n = 212311223097 and 212311223106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3538520356 + ... + 3538520415.

It is an arithmetic number, because the mean of its divisors is an integer number (31846683474).

Almost surely, 2^212311223130 is an apocalyptic number.

212311223130 is an abundant number, since it is smaller than the sum of its proper divisors (297235712454).

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

212311223130 is a wasteful number, since it uses less digits than its factorization.

212311223130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7077040781.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 212311223130 its reverse (31322113212), we get a palindrome (243633336342).

The spelling of 212311223130 in words is "two hundred twelve billion, three hundred eleven million, two hundred twenty-three thousand, one hundred thirty".