2131221410 has 64 divisors (see below), whose sum is σ = 4012968960. Its totient is φ = 814302720.

The previous prime is 2131221403. The next prime is 2131221419. The reversal of 2131221410 is 141221312.

It is not an unprimeable number, because it can be changed into a prime (2131221419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4602839 + ... + 4603301.

It is an arithmetic number, because the mean of its divisors is an integer number (62702640).

Almost surely, 2^2131221410 is an apocalyptic number.

2131221410 is a deficient number, since it is larger than the sum of its proper divisors (1881747550).

2131221410 is a wasteful number, since it uses less digits than its factorization.

2131221410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2131221410 is about 46165.1536334495. The cubic root of 2131221410 is about 1286.8942393099.

Adding to 2131221410 its reverse (141221312), we get a palindrome (2272442722).

The spelling of 2131221410 in words is "two billion, one hundred thirty-one million, two hundred twenty-one thousand, four hundred ten".