212140340410 has 32 divisors (see below), whose sum is σ = 392169600000. Its totient is φ = 82591953600.

The previous prime is 212140340371. The next prime is 212140340411. The reversal of 212140340410 is 14043041212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212140340411) 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, 1720410 + ... + 1839589.

It is an arithmetic number, because the mean of its divisors is an integer number (12255300000).

Almost surely, 2^212140340410 is an apocalyptic number.

212140340410 is a deficient number, since it is larger than the sum of its proper divisors (180029259590).

212140340410 is a wasteful number, since it uses less digits than its factorization.

212140340410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3560166.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 212140340410 its reverse (14043041212), we get a palindrome (226183381622).

The spelling of 212140340410 in words is "two hundred twelve billion, one hundred forty million, three hundred forty thousand, four hundred ten".