2121132201 has 4 divisors (see below), whose sum is σ = 2828176272. Its totient is φ = 1414088132.

The previous prime is 2121132173. The next prime is 2121132217. The reversal of 2121132201 is 1022311212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2121132201 - 2⁷ = 2121132073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121132001) 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 3 ways as a sum of consecutive naturals, for example, 353522031 + ... + 353522036.

It is an arithmetic number, because the mean of its divisors is an integer number (707044068).

Almost surely, 2^2121132201 is an apocalyptic number.

It is an amenable number.

2121132201 is a deficient number, since it is larger than the sum of its proper divisors (707044071).

2121132201 is an equidigital number, since it uses as much as digits as its factorization.

2121132201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707044070.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2121132201 is about 46055.7510089674. The cubic root of 2121132201 is about 1284.8603058890.

Adding to 2121132201 its reverse (1022311212), we get a palindrome (3143443413).

The spelling of 2121132201 in words is "two billion, one hundred twenty-one million, one hundred thirty-two thousand, two hundred one".