212512314630 has 128 divisors (see below), whose sum is σ = 673285893120. Its totient is φ = 41560842240.

The previous prime is 212512314607. The next prime is 212512314653. The reversal of 212512314630 is 36413215212.

It is an interprime number because it is at equal distance from previous prime (212512314607) and next prime (212512314653).

It is a super-2 number, since 2×212512314630² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2666515 + ... + 2745054.

It is an arithmetic number, because the mean of its divisors is an integer number (5260046040).

Almost surely, 2^212512314630 is an apocalyptic number.

212512314630 is an abundant number, since it is smaller than the sum of its proper divisors (460773578490).

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

212512314630 is a wasteful number, since it uses less digits than its factorization.

212512314630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5411614.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 212512314630 its reverse (36413215212), we get a palindrome (248925529842).

The spelling of 212512314630 in words is "two hundred twelve billion, five hundred twelve million, three hundred fourteen thousand, six hundred thirty".