213202220004 has 72 divisors (see below), whose sum is σ = 542536874880. Its totient is φ = 70593083712.

The previous prime is 213202219943. The next prime is 213202220017. The reversal of 213202220004 is 400022202312.

It is a super-2 number, since 2×213202220004² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3205317 + ... + 3271155.

Almost surely, 2^213202220004 is an apocalyptic number.

It is an amenable number.

213202220004 is an abundant number, since it is smaller than the sum of its proper divisors (329334654876).

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

213202220004 is a wasteful number, since it uses less digits than its factorization.

213202220004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66449 (or 66444 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 213202220004 its reverse (400022202312), we get a palindrome (613224422316).

The spelling of 213202220004 in words is "two hundred thirteen billion, two hundred two million, two hundred twenty thousand, four".