213040212 has 48 divisors (see below), whose sum is σ = 619756032. Its totient is φ = 55334880.

The previous prime is 213040211. The next prime is 213040213. The reversal of 213040212 is 212040312.

213040212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (213040211) and next prime (213040213).

It is a super-2 number, since 2×213040212² = 90772263858009888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213040191 and 213040200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213040211) 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, 114358 + ... + 116205.

It is an arithmetic number, because the mean of its divisors is an integer number (12911584).

Almost surely, 2^213040212 is an apocalyptic number.

213040212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213040212 is an abundant number, since it is smaller than the sum of its proper divisors (406715820).

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

213040212 is a wasteful number, since it uses less digits than its factorization.

213040212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230588 (or 230586 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 213040212 is about 14595.8970947318. The cubic root of 213040212 is about 597.2468417444.

Adding to 213040212 its reverse (212040312), we get a palindrome (425080524).

The spelling of 213040212 in words is "two hundred thirteen million, forty thousand, two hundred twelve".