4222002421 has 8 divisors (see below), whose sum is σ = 5196310784. Its totient is φ = 3340485360.

The previous prime is 4222002409. The next prime is 4222002427. The reversal of 4222002421 is 1242002224.

4222002421 is digitally balanced in base 3, 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 4222002421 - 2²³ = 4213613813 is a prime.

It is a super-2 number, since 2×4222002421² = 35650608885859722482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4222002427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23197725 + ... + 23197906.

It is an arithmetic number, because the mean of its divisors is an integer number (649538848).

Almost surely, 2^4222002421 is an apocalyptic number.

It is an amenable number.

4222002421 is a deficient number, since it is larger than the sum of its proper divisors (974308363).

4222002421 is a wasteful number, since it uses less digits than its factorization.

4222002421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46395651.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 4222002421 is about 64976.9376086624. The cubic root of 4222002421 is about 1616.2411481134.

Adding to 4222002421 its reverse (1242002224), we get a palindrome (5464004645).

The spelling of 4222002421 in words is "four billion, two hundred twenty-two million, two thousand, four hundred twenty-one".