212001146 has 24 divisors (see below), whose sum is σ = 370628820. Its totient is φ = 90683712.

The previous prime is 212001109. The next prime is 212001149. The reversal of 212001146 is 641100212.

212001146 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 2 ways, for example, as 144120025 + 67881121 = 12005^2 + 8239^2 .

It is not an unprimeable number, because it can be changed into a prime (212001149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58310 + ... + 61838.

Almost surely, 2^212001146 is an apocalyptic number.

212001146 is a deficient number, since it is larger than the sum of its proper divisors (158627674).

212001146 is a wasteful number, since it uses less digits than its factorization.

212001146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4158 (or 4151 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 212001146 is about 14560.2591323094. The cubic root of 212001146 is about 596.2742701892.

Adding to 212001146 its reverse (641100212), we get a palindrome (853101358).

The spelling of 212001146 in words is "two hundred twelve million, one thousand, one hundred forty-six".