212220303132 has 48 divisors (see below), whose sum is σ = 503934389280. Its totient is φ = 69499702272.

The previous prime is 212220303107. The next prime is 212220303149. The reversal of 212220303132 is 231303022212.

It is a happy number.

It is a super-2 number, since 2×212220303132² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212220303099 and 212220303108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465153 + ... + 800504.

It is an arithmetic number, because the mean of its divisors is an integer number (10498633110).

Almost surely, 2^212220303132 is an apocalyptic number.

It is an amenable number.

212220303132 is an abundant number, since it is smaller than the sum of its proper divisors (291714086148).

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

212220303132 is a wasteful number, since it uses less digits than its factorization.

212220303132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265910 (or 1265908 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 212220303132 its reverse (231303022212), we get a palindrome (443523325344).

The spelling of 212220303132 in words is "two hundred twelve billion, two hundred twenty million, three hundred three thousand, one hundred thirty-two".