213024202220 has 24 divisors (see below), whose sum is σ = 447444438000. Its totient is φ = 85191849792.

The previous prime is 213024202213. The next prime is 213024202247. The reversal of 213024202220 is 22202420312.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 213024202192 and 213024202201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1016270 + ... + 1207829.

It is an arithmetic number, because the mean of its divisors is an integer number (18643518250).

Almost surely, 2^213024202220 is an apocalyptic number.

213024202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213024202220 is an abundant number, since it is smaller than the sum of its proper divisors (234420235780).

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

213024202220 is a wasteful number, since it uses less digits than its factorization.

213024202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228897 (or 2228895 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 213024202220 its reverse (22202420312), we get a palindrome (235226622532).

The spelling of 213024202220 in words is "two hundred thirteen billion, twenty-four million, two hundred two thousand, two hundred twenty".