212431264116 has 48 divisors (see below), whose sum is σ = 512807198400. Its totient is φ = 68363072512.

The previous prime is 212431264109. The next prime is 212431264117. The reversal of 212431264116 is 611462134212.

It is a happy number.

It is a super-2 number, since 2×212431264116² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212431264117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7272196 + ... + 7301348.

It is an arithmetic number, because the mean of its divisors is an integer number (10683483300).

Almost surely, 2^212431264116 is an apocalyptic number.

It is an amenable number.

212431264116 is an abundant number, since it is smaller than the sum of its proper divisors (300375934284).

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

212431264116 is a wasteful number, since it uses less digits than its factorization.

212431264116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50128 (or 50126 counting only the distinct ones).

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

Adding to 212431264116 its reverse (611462134212), we get a palindrome (823893398328).

The spelling of 212431264116 in words is "two hundred twelve billion, four hundred thirty-one million, two hundred sixty-four thousand, one hundred sixteen".