212157883385 has 8 divisors (see below), whose sum is σ = 290959382976. Its totient is φ = 145479691440.

The previous prime is 212157883369. The next prime is 212157883387. The reversal of 212157883385 is 583388751212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212157883385 - 2⁴ = 212157883369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212157883387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3030826871 + ... + 3030826940.

It is an arithmetic number, because the mean of its divisors is an integer number (36369922872).

Almost surely, 2^212157883385 is an apocalyptic number.

It is an amenable number.

212157883385 is a deficient number, since it is larger than the sum of its proper divisors (78801499591).

212157883385 is an equidigital number, since it uses as much as digits as its factorization.

212157883385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6061653823.

The product of its digits is 3225600, while the sum is 53.

The spelling of 212157883385 in words is "two hundred twelve billion, one hundred fifty-seven million, eight hundred eighty-three thousand, three hundred eighty-five".