213020434122 has 16 divisors (see below), whose sum is σ = 434079375840. Its totient is φ = 69667060112.

The previous prime is 213020434111. The next prime is 213020434169. The reversal of 213020434122 is 221434020312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 213020434092 and 213020434101.

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, 334937472 + ... + 334938107.

It is an arithmetic number, because the mean of its divisors is an integer number (27129960990).

Almost surely, 2^213020434122 is an apocalyptic number.

213020434122 is an abundant number, since it is smaller than the sum of its proper divisors (221058941718).

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

213020434122 is a wasteful number, since it uses less digits than its factorization.

213020434122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669875637.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 213020434122 its reverse (221434020312), we get a palindrome (434454454434).

The spelling of 213020434122 in words is "two hundred thirteen billion, twenty million, four hundred thirty-four thousand, one hundred twenty-two".