2202421 has 8 divisors (see below), whose sum is σ = 2386944. Its totient is φ = 2020080.

The previous prime is 2202419. The next prime is 2202433. The reversal of 2202421 is 1242022.

2202421 = T₄₆ + T₄₇ + ... + T₂₃₆.

2202421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2202421 - 2¹ = 2202419 is a prime.

It is a super-2 number, since 2×2202421² = 9701316522482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2040 + ... + 2926.

It is an arithmetic number, because the mean of its divisors is an integer number (298368).

2^2202421 is an apocalyptic number.

It is an amenable number.

2202421 is a deficient number, since it is larger than the sum of its proper divisors (184523).

2202421 is a wasteful number, since it uses less digits than its factorization.

2202421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2202421 is about 1484.0555919507. The cubic root of 2202421 is about 130.1068352546.

Adding to 2202421 its reverse (1242022), we get a palindrome (3444443).

The spelling of 2202421 in words is "two million, two hundred two thousand, four hundred twenty-one".