212130831462 has 64 divisors (see below), whose sum is σ = 477359059968. Its totient is φ = 62291360000.

The previous prime is 212130831413. The next prime is 212130831469. The reversal of 212130831462 is 264138031212.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212130831469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25239 + ... + 651842.

It is an arithmetic number, because the mean of its divisors is an integer number (7458735312).

Almost surely, 2^212130831462 is an apocalyptic number.

212130831462 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 212130831462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238679529984).

212130831462 is an abundant number, since it is smaller than the sum of its proper divisors (265228228506).

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

212130831462 is a wasteful number, since it uses less digits than its factorization.

212130831462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677245.

The product of its (nonzero) digits is 13824, while the sum is 33.

Adding to 212130831462 its reverse (264138031212), we get a palindrome (476268862674).

The spelling of 212130831462 in words is "two hundred twelve billion, one hundred thirty million, eight hundred thirty-one thousand, four hundred sixty-two".