2212400445 has 16 divisors (see below), whose sum is σ = 3571169472. Its totient is φ = 1169504000.

The previous prime is 2212400431. The next prime is 2212400461. The reversal of 2212400445 is 5440042122.

It is a happy number.

It is not a de Polignac number, because 2212400445 - 2⁶ = 2212400381 is a prime.

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, 650931 + ... + 654320.

It is an arithmetic number, because the mean of its divisors is an integer number (223198092).

Almost surely, 2^2212400445 is an apocalyptic number.

It is an amenable number.

2212400445 is a deficient number, since it is larger than the sum of its proper divisors (1358769027).

2212400445 is a wasteful number, since it uses less digits than its factorization.

2212400445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305372.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 2212400445 is about 47036.1610359519. The cubic root of 2212400445 is about 1303.0304930973.

Adding to 2212400445 its reverse (5440042122), we get a palindrome (7652442567).

The spelling of 2212400445 in words is "two billion, two hundred twelve million, four hundred thousand, four hundred forty-five".