213224252340 has 96 divisors (see below), whose sum is σ = 665160781824. Its totient is φ = 50590917760.

The previous prime is 213224252327. The next prime is 213224252357. The reversal of 213224252340 is 43252422312.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 213224252298 and 213224252307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3405864 + ... + 3467903.

It is an arithmetic number, because the mean of its divisors is an integer number (6928758144).

Almost surely, 2^213224252340 is an apocalyptic number.

213224252340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213224252340 is an abundant number, since it is smaller than the sum of its proper divisors (451936529484).

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

213224252340 is a wasteful number, since it uses less digits than its factorization.

213224252340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6873837 (or 6873835 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 213224252340 its reverse (43252422312), we get a palindrome (256476674652).

It can be divided in two parts, 213224 and 252340, that added together give a palindrome (465564).

The spelling of 213224252340 in words is "two hundred thirteen billion, two hundred twenty-four million, two hundred fifty-two thousand, three hundred forty".