220002212 has 6 divisors (see below), whose sum is σ = 385003878. Its totient is φ = 110001104.

The previous prime is 220002203. The next prime is 220002283. The reversal of 220002212 is 212200022.

It can be written as a sum of positive squares in only one way, i.e., 215091556 + 4910656 = 14666^2 + 2216^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220002193 and 220002202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27500273 + ... + 27500280.

It is an arithmetic number, because the mean of its divisors is an integer number (64167313).

Almost surely, 2^220002212 is an apocalyptic number.

It is an amenable number.

220002212 is a deficient number, since it is larger than the sum of its proper divisors (165001666).

220002212 is a wasteful number, since it uses less digits than its factorization.

220002212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55000557 (or 55000555 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 220002212 is about 14832.4715405087. The cubic root of 220002212 is about 603.6830969193.

Adding to 220002212 its reverse (212200022), we get a palindrome (432202234).

The spelling of 220002212 in words is "two hundred twenty million, two thousand, two hundred twelve".