212394690835 has 8 divisors (see below), whose sum is σ = 255012839136. Its totient is φ = 169822945920.

The previous prime is 212394690817. The next prime is 212394690847. The reversal of 212394690835 is 538096493212.

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

It is not a de Polignac number, because 212394690835 - 2¹⁵ = 212394658067 is a prime.

It is a super-2 number, since 2×212394690835² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11590774 + ... + 11609083.

It is an arithmetic number, because the mean of its divisors is an integer number (31876604892).

Almost surely, 2^212394690835 is an apocalyptic number.

212394690835 is a deficient number, since it is larger than the sum of its proper divisors (42618148301).

212394690835 is a wasteful number, since it uses less digits than its factorization.

212394690835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23201693.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 212394690835 in words is "two hundred twelve billion, three hundred ninety-four million, six hundred ninety thousand, eight hundred thirty-five".