213021440122 has 8 divisors (see below), whose sum is σ = 319556765376. Its totient is φ = 106502518332.

The previous prime is 213021440113. The next prime is 213021440179. The reversal of 213021440122 is 221044120312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×213021440122³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213021440093 and 213021440102.

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 3 ways as a sum of consecutive naturals, for example, 4068348 + ... + 4120375.

It is an arithmetic number, because the mean of its divisors is an integer number (39944595672).

Almost surely, 2^213021440122 is an apocalyptic number.

213021440122 is a deficient number, since it is larger than the sum of its proper divisors (106535325254).

213021440122 is a wasteful number, since it uses less digits than its factorization.

213021440122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8201732.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 213021440122 its reverse (221044120312), we get a palindrome (434065560434).

The spelling of 213021440122 in words is "two hundred thirteen billion, twenty-one million, four hundred forty thousand, one hundred twenty-two".