213422124004 has 12 divisors (see below), whose sum is σ = 374060679804. Its totient is φ = 106547644064.

The previous prime is 213422124001. The next prime is 213422124067. The reversal of 213422124004 is 400421224312.

It can be written as a sum of positive squares in 2 ways, for example, as 61579415104 + 151842708900 = 248152^2 + 389670^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213422124004.

It is not an unprimeable number, because it can be changed into a prime (213422124001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40851547 + ... + 40856770.

It is an arithmetic number, because the mean of its divisors is an integer number (31171723317).

Almost surely, 2^213422124004 is an apocalyptic number.

It is an amenable number.

213422124004 is a deficient number, since it is larger than the sum of its proper divisors (160638555800).

213422124004 is a wasteful number, since it uses less digits than its factorization.

213422124004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81708974 (or 81708972 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 213422124004 its reverse (400421224312), we get a palindrome (613843348316).

The spelling of 213422124004 in words is "two hundred thirteen billion, four hundred twenty-two million, one hundred twenty-four thousand, four".