211439226942 has 12 divisors (see below), whose sum is σ = 458118325080. Its totient is φ = 70479742308.

The previous prime is 211439226883. The next prime is 211439226959. The reversal of 211439226942 is 249622934112.

211439226942 is a `hidden beast` number, since 211 + 4 + 392 + 2 + 6 + 9 + 42 = 666.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 5873311842 + ... + 5873311877.

It is an arithmetic number, because the mean of its divisors is an integer number (38176527090).

Almost surely, 2^211439226942 is an apocalyptic number.

211439226942 is an abundant number, since it is smaller than the sum of its proper divisors (246679098138).

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

211439226942 is a wasteful number, since it uses less digits than its factorization.

211439226942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11746623727 (or 11746623724 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The spelling of 211439226942 in words is "two hundred eleven billion, four hundred thirty-nine million, two hundred twenty-six thousand, nine hundred forty-two".