2212400444 has 12 divisors (see below), whose sum is σ = 3911615904. Its totient is φ = 1094795904.

The previous prime is 2212400431. The next prime is 2212400461. The reversal of 2212400444 is 4440042122.

It is a super-2 number, since 2×2212400444² = 9789431449222794272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2850644 + ... + 2851419.

It is an arithmetic number, because the mean of its divisors is an integer number (325967992).

Almost surely, 2^2212400444 is an apocalyptic number.

It is an amenable number.

2212400444 is a deficient number, since it is larger than the sum of its proper divisors (1699215460).

2212400444 is a wasteful number, since it uses less digits than its factorization.

2212400444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5702164 (or 5702162 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 2212400444 is about 47036.1610253218. The cubic root of 2212400444 is about 1303.0304929010.

Adding to 2212400444 its reverse (4440042122), we get a palindrome (6652442566).

The spelling of 2212400444 in words is "two billion, two hundred twelve million, four hundred thousand, four hundred forty-four".