212201040 has 40 divisors (see below), whose sum is σ = 657823968. Its totient is φ = 56586880.

The previous prime is 212201039. The next prime is 212201047. The reversal of 212201040 is 40102212.

212201040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212201047) 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, 441846 + ... + 442325.

Almost surely, 2^212201040 is an apocalyptic number.

212201040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212201040 is an abundant number, since it is smaller than the sum of its proper divisors (445622928).

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

212201040 is a wasteful number, since it uses less digits than its factorization.

212201040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884187 (or 884181 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 212201040 is about 14567.1218845728. The cubic root of 212201040 is about 596.4616185586.

Adding to 212201040 its reverse (40102212), we get a palindrome (252303252).

The spelling of 212201040 in words is "two hundred twelve million, two hundred one thousand, forty".