212420231122210 has 16 divisors (see below), whose sum is σ = 382417917887736. Its totient is φ = 84954425367168.

The previous prime is 212420231122181. The next prime is 212420231122217. The reversal of 212420231122210 is 12221132024212.

It can be written as a sum of positive squares in 4 ways, for example, as 181868069307409 + 30552161814801 = 13485847^2 + 5527401^2 .

It is a super-2 number, since 2×212420231122210² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212420231122217) 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, 1708319937 + ... + 1708444276.

Almost surely, 2^{212420231122210} is an apocalyptic number.

212420231122210 is a deficient number, since it is larger than the sum of its proper divisors (169997686765526).

212420231122210 is a wasteful number, since it uses less digits than its factorization.

212420231122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416770437.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 212420231122210 its reverse (12221132024212), we get a palindrome (224641363146422).

The spelling of 212420231122210 in words is "two hundred twelve trillion, four hundred twenty billion, two hundred thirty-one million, one hundred twenty-two thousand, two hundred ten".