212040310 has 32 divisors (see below), whose sum is σ = 403172352. Its totient is φ = 80166240.

The previous prime is 212040281. The next prime is 212040313. The reversal of 212040310 is 13040212.

It is a super-2 number, since 2×212040310² = 89922186129792200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212040313) 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, 5377 + ... + 21283.

It is an arithmetic number, because the mean of its divisors is an integer number (12599136).

Almost surely, 2^212040310 is an apocalyptic number.

212040310 is a deficient number, since it is larger than the sum of its proper divisors (191132042).

212040310 is a wasteful number, since it uses less digits than its factorization.

212040310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15988.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 212040310 is about 14561.6039638496. The cubic root of 212040310 is about 596.3109854745.

Adding to 212040310 its reverse (13040212), we get a palindrome (225080522).

The spelling of 212040310 in words is "two hundred twelve million, forty thousand, three hundred ten".