212234555779 has 8 divisors (see below), whose sum is σ = 215410129088. Its totient is φ = 209059214760.

The previous prime is 212234555777. The next prime is 212234555789. The reversal of 212234555779 is 977555432212.

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

It is a cyclic number.

It is not a de Polignac number, because 212234555779 - 2¹ = 212234555777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212234555777) 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, 2902984 + ... + 2975194.

It is an arithmetic number, because the mean of its divisors is an integer number (26926266136).

Almost surely, 2^212234555779 is an apocalyptic number.

212234555779 is a deficient number, since it is larger than the sum of its proper divisors (3175573309).

212234555779 is an equidigital number, since it uses as much as digits as its factorization.

212234555779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116145.

The product of its digits is 5292000, while the sum is 52.

The spelling of 212234555779 in words is "two hundred twelve billion, two hundred thirty-four million, five hundred fifty-five thousand, seven hundred seventy-nine".