212110552631 has 4 divisors (see below), whose sum is σ = 212111900664. Its totient is φ = 212109204600.

The previous prime is 212110552613. The next prime is 212110552649. The reversal of 212110552631 is 136255011212.

212110552631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (212110552613) and next prime (212110552649).

It is a cyclic number.

It is not a de Polignac number, because 212110552631 - 2¹⁴ = 212110536247 is a prime.

It is a super-2 number, since 2×212110552631² (a number of 23 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 = 212110552594 and 212110552603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212110552601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401180 + ... + 764961.

It is an arithmetic number, because the mean of its divisors is an integer number (53027975166).

Almost surely, 2^212110552631 is an apocalyptic number.

212110552631 is a deficient number, since it is larger than the sum of its proper divisors (1348033).

212110552631 is a wasteful number, since it uses less digits than its factorization.

212110552631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348032.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 212110552631 its reverse (136255011212), we get a palindrome (348365563843).

The spelling of 212110552631 in words is "two hundred twelve billion, one hundred ten million, five hundred fifty-two thousand, six hundred thirty-one".