211231014212440 has 16 divisors (see below), whose sum is σ = 475269781978080. Its totient is φ = 84492405684960.

The previous prime is 211231014212437. The next prime is 211231014212447. The reversal of 211231014212440 is 44212410132112.

It is a super-3 number, since 3×211231014212440³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211231014212399 and 211231014212408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211231014212447) 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, 2640387677616 + ... + 2640387677695.

It is an arithmetic number, because the mean of its divisors is an integer number (29704361373630).

Almost surely, 2^{211231014212440} is an apocalyptic number.

211231014212440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211231014212440 is an abundant number, since it is smaller than the sum of its proper divisors (264038767765640).

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

211231014212440 is a wasteful number, since it uses less digits than its factorization.

211231014212440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5280775355322 (or 5280775355318 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 211231014212440 its reverse (44212410132112), we get a palindrome (255443424344552).

The spelling of 211231014212440 in words is "two hundred eleven trillion, two hundred thirty-one billion, fourteen million, two hundred twelve thousand, four hundred forty".