2141221201 has 4 divisors (see below), whose sum is σ = 2447109952. Its totient is φ = 1835332452.

The previous prime is 2141221193. The next prime is 2141221211. The reversal of 2141221201 is 1021221412.

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 2141221201 - 2³ = 2141221193 is a prime.

It is a super-2 number, since 2×2141221201² = 9169656463223764802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2141221211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152944365 + ... + 152944378.

It is an arithmetic number, because the mean of its divisors is an integer number (611777488).

Almost surely, 2^2141221201 is an apocalyptic number.

It is an amenable number.

2141221201 is a deficient number, since it is larger than the sum of its proper divisors (305888751).

2141221201 is an equidigital number, since it uses as much as digits as its factorization.

2141221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305888750.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2141221201 is about 46273.3314231859. The cubic root of 2141221201 is about 1288.9038223071.

Adding to 2141221201 its reverse (1021221412), we get a palindrome (3162442613).

The spelling of 2141221201 in words is "two billion, one hundred forty-one million, two hundred twenty-one thousand, two hundred one".