2202042021 has 4 divisors (see below), whose sum is σ = 2936056032. Its totient is φ = 1468028012.

The previous prime is 2202042001. The next prime is 2202042053. The reversal of 2202042021 is 1202402022.

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 2202042021 - 2⁶ = 2202041957 is a prime.

It is a super-3 number, since 3×2202042021³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202042001) 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, 367007001 + ... + 367007006.

It is an arithmetic number, because the mean of its divisors is an integer number (734014008).

Almost surely, 2^2202042021 is an apocalyptic number.

It is an amenable number.

2202042021 is a deficient number, since it is larger than the sum of its proper divisors (734014011).

2202042021 is an equidigital number, since it uses as much as digits as its factorization.

2202042021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734014010.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2202042021 is about 46925.9205663565. The cubic root of 2202042021 is about 1300.9937216639.

Adding to 2202042021 its reverse (1202402022), we get a palindrome (3404444043).

The spelling of 2202042021 in words is "two billion, two hundred two million, forty-two thousand, twenty-one".