2143222401 has 32 divisors (see below), whose sum is σ = 3058836480. Its totient is φ = 1330862400.

The previous prime is 2143222391. The next prime is 2143222421. The reversal of 2143222401 is 1042223412.

It is not a de Polignac number, because 2143222401 - 2⁵ = 2143222369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2143222421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2642286 + ... + 2643096.

It is an arithmetic number, because the mean of its divisors is an integer number (95588640).

Almost surely, 2^2143222401 is an apocalyptic number.

It is an amenable number.

2143222401 is a deficient number, since it is larger than the sum of its proper divisors (915614079).

2143222401 is a wasteful number, since it uses less digits than its factorization.

2143222401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2143222401 is about 46294.9500593747. The cubic root of 2143222401 is about 1289.3052367249.

Adding to 2143222401 its reverse (1042223412), we get a palindrome (3185445813).

The spelling of 2143222401 in words is "two billion, one hundred forty-three million, two hundred twenty-two thousand, four hundred one".