211213321004 has 24 divisors (see below), whose sum is σ = 422998302720. Its totient is φ = 90397496016.

The previous prime is 211213320991. The next prime is 211213321019. The reversal of 211213321004 is 400123312112.

It is a super-2 number, since 2×211213321004² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5083052 + ... + 5124435.

It is an arithmetic number, because the mean of its divisors is an integer number (17624929280).

Almost surely, 2^211213321004 is an apocalyptic number.

It is an amenable number.

211213321004 is an abundant number, since it is smaller than the sum of its proper divisors (211784981716).

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

211213321004 is a wasteful number, since it uses less digits than its factorization.

211213321004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10208237 (or 10208235 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 211213321004 its reverse (400123312112), we get a palindrome (611336633116).

The spelling of 211213321004 in words is "two hundred eleven billion, two hundred thirteen million, three hundred twenty-one thousand, four".