212012120223031 has 16 divisors (see below), whose sum is σ = 212912912701440. Its totient is φ = 211112784567360.

The previous prime is 212012120222993. The next prime is 212012120223037. The reversal of 212012120223031 is 130322021210212.

It is a cyclic number.

It is not a de Polignac number, because 212012120223031 - 2¹⁵ = 212012120190263 is a prime.

It is a super-2 number, since 2×212012120223031² (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 = 212012120222993 and 212012120223011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012120223037) 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, 6427904566 + ... + 6427937548.

It is an arithmetic number, because the mean of its divisors is an integer number (13307057043840).

Almost surely, 2^{212012120223031} is an apocalyptic number.

212012120223031 is a deficient number, since it is larger than the sum of its proper divisors (900792478409).

212012120223031 is a wasteful number, since it uses less digits than its factorization.

212012120223031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54246.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 212012120223031 its reverse (130322021210212), we get a palindrome (342334141433243).

The spelling of 212012120223031 in words is "two hundred twelve trillion, twelve billion, one hundred twenty million, two hundred twenty-three thousand, thirty-one".