213112021024 has 96 divisors (see below), whose sum is σ = 493697344896. Its totient is φ = 88642252800.

The previous prime is 213112020997. The next prime is 213112021069. The reversal of 213112021024 is 420120211312.

It is a junction number, because it is equal to n+sod(n) for n = 213112020992 and 213112021010.

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 15 ways as a sum of consecutive naturals, for example, 3291427 + ... + 3355549.

It is an arithmetic number, because the mean of its divisors is an integer number (5142680676).

Almost surely, 2^213112021024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213112021024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246848672448).

213112021024 is an abundant number, since it is smaller than the sum of its proper divisors (280585323872).

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

213112021024 is a wasteful number, since it uses less digits than its factorization.

213112021024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64578 (or 64570 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 213112021024 its reverse (420120211312), we get a palindrome (633232232336).

The spelling of 213112021024 in words is "two hundred thirteen billion, one hundred twelve million, twenty-one thousand, twenty-four".