3422220221 has 6 divisors (see below), whose sum is σ = 3980950110. Its totient is φ = 2933331576.

The previous prime is 3422220203. The next prime is 3422220287. The reversal of 3422220221 is 1220222243.

It can be written as a sum of positive squares in only one way, i.e., 2982688996 + 439531225 = 54614^2 + 20965^2 .

It is not a de Polignac number, because 3422220221 - 2²² = 3418025917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3422220193 and 3422220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3422220521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34920566 + ... + 34920663.

It is an arithmetic number, because the mean of its divisors is an integer number (663491685).

Almost surely, 2^3422220221 is an apocalyptic number.

It is an amenable number.

3422220221 is a deficient number, since it is larger than the sum of its proper divisors (558729889).

3422220221 is an equidigital number, since it uses as much as digits as its factorization.

3422220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69841243 (or 69841236 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 3422220221 is about 58499.7454780788. The cubic root of 3422220221 is about 1506.9632140452.

Adding to 3422220221 its reverse (1220222243), we get a palindrome (4642442464).

The spelling of 3422220221 in words is "three billion, four hundred twenty-two million, two hundred twenty thousand, two hundred twenty-one".