446220212 has 6 divisors (see below), whose sum is σ = 780885378. Its totient is φ = 223110104.

The previous prime is 446220211. The next prime is 446220221. The reversal of 446220212 is 212022644.

It can be written as a sum of positive squares in only one way, i.e., 444956836 + 1263376 = 21094^2 + 1124^2 .

It is a super-2 number, since 2×446220212² = 398224955194649888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (446220211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55777523 + ... + 55777530.

It is an arithmetic number, because the mean of its divisors is an integer number (130147563).

Almost surely, 2^446220212 is an apocalyptic number.

It is an amenable number.

446220212 is a deficient number, since it is larger than the sum of its proper divisors (334665166).

446220212 is a wasteful number, since it uses less digits than its factorization.

446220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111555057 (or 111555055 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 446220212 is about 21123.9251087481. The cubic root of 446220212 is about 764.1578509398.

Adding to 446220212 its reverse (212022644), we get a palindrome (658242856).

The spelling of 446220212 in words is "four hundred forty-six million, two hundred twenty thousand, two hundred twelve".