212511412 has 6 divisors (see below), whose sum is σ = 371894978. Its totient is φ = 106255704.

The previous prime is 212511389. The next prime is 212511419. The reversal of 212511412 is 214115212.

212511412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 125574436 + 86936976 = 11206^2 + 9324^2 .

It is a super-2 number, since 2×212511412² = 90322200460467488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212511412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212511419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26563923 + ... + 26563930.

Almost surely, 2^212511412 is an apocalyptic number.

It is an amenable number.

212511412 is a deficient number, since it is larger than the sum of its proper divisors (159383566).

212511412 is a wasteful number, since it uses less digits than its factorization.

212511412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53127857 (or 53127855 counting only the distinct ones).

The product of its digits is 160, while the sum is 19.

The square root of 212511412 is about 14577.7711602289. The cubic root of 212511412 is about 596.7522781491.

Adding to 212511412 its reverse (214115212), we get a palindrome (426626624).

The spelling of 212511412 in words is "two hundred twelve million, five hundred eleven thousand, four hundred twelve".