212213334040 has 32 divisors (see below), whose sum is σ = 487639154880. Its totient is φ = 83079261952.

The previous prime is 212213333999. The next prime is 212213334043. The reversal of 212213334040 is 40433312212.

It is a junction number, because it is equal to n+sod(n) for n = 212213333996 and 212213334014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212213334043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56437837 + ... + 56441596.

It is an arithmetic number, because the mean of its divisors is an integer number (15238723590).

Almost surely, 2^212213334040 is an apocalyptic number.

212213334040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212213334040 is an abundant number, since it is smaller than the sum of its proper divisors (275425820840).

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

212213334040 is a wasteful number, since it uses less digits than its factorization.

212213334040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112879491 (or 112879487 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 212213334040 its reverse (40433312212), we get a palindrome (252646646252).

The spelling of 212213334040 in words is "two hundred twelve billion, two hundred thirteen million, three hundred thirty-four thousand, forty".