212087851833 has 32 divisors (see below), whose sum is σ = 332257161600. Its totient is φ = 118637821440.

The previous prime is 212087851831. The next prime is 212087851849. The reversal of 212087851833 is 338158780212.

It is not a de Polignac number, because 212087851833 - 2¹ = 212087851831 is a prime.

It is a super-2 number, since 2×212087851833² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (212087851831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5158843 + ... + 5199791.

It is an arithmetic number, because the mean of its divisors is an integer number (10383036300).

Almost surely, 2^212087851833 is an apocalyptic number.

It is an amenable number.

212087851833 is a deficient number, since it is larger than the sum of its proper divisors (120169309767).

212087851833 is a wasteful number, since it uses less digits than its factorization.

212087851833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53049.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 212087851833 in words is "two hundred twelve billion, eighty-seven million, eight hundred fifty-one thousand, eight hundred thirty-three".