2200020421 has 4 divisors (see below), whose sum is σ = 2211076000. Its totient is φ = 2188964844.

The previous prime is 2200020409. The next prime is 2200020437. The reversal of 2200020421 is 1240200022.

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 2200020421 - 2⁷ = 2200020293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200020721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5527491 + ... + 5527888.

It is an arithmetic number, because the mean of its divisors is an integer number (552769000).

Almost surely, 2^2200020421 is an apocalyptic number.

It is an amenable number.

2200020421 is a deficient number, since it is larger than the sum of its proper divisors (11055579).

2200020421 is a wasteful number, since it uses less digits than its factorization.

2200020421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11055578.

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

The square root of 2200020421 is about 46904.3752863206. The cubic root of 2200020421 is about 1300.5954709871.

Adding to 2200020421 its reverse (1240200022), we get a palindrome (3440220443).

The spelling of 2200020421 in words is "two billion, two hundred million, twenty thousand, four hundred twenty-one".