212220013440031 has 16 divisors (see below), whose sum is σ = 217548461632320. Its totient is φ = 206957650855680.

The previous prime is 212220013440011. The next prime is 212220013440059. The reversal of 212220013440031 is 130044310022212.

It is a cyclic number.

It is not a de Polignac number, because 212220013440031 - 2³⁹ = 211670257626143 is a prime.

It is a super-2 number, since 2×212220013440031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212220013439978 and 212220013440005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212220013440011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22814166 + ... + 30739651.

It is an arithmetic number, because the mean of its divisors is an integer number (13596778852020).

Almost surely, 2^{212220013440031} is an apocalyptic number.

212220013440031 is a deficient number, since it is larger than the sum of its proper divisors (5328448192289).

212220013440031 is a wasteful number, since it uses less digits than its factorization.

212220013440031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53554434.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 212220013440031 its reverse (130044310022212), we get a palindrome (342264323462243).

The spelling of 212220013440031 in words is "two hundred twelve trillion, two hundred twenty billion, thirteen million, four hundred forty thousand, thirty-one".