4221210402 has 16 divisors (see below), whose sum is σ = 9380467680. Its totient is φ = 1407070116.

The previous prime is 4221210377. The next prime is 4221210407. The reversal of 4221210402 is 2040121224.

4221210402 is a `hidden beast` number, since 42 + 212 + 10 + 402 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (4221210407) 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, 39085228 + ... + 39085335.

It is an arithmetic number, because the mean of its divisors is an integer number (586279230).

Almost surely, 2^4221210402 is an apocalyptic number.

4221210402 is an abundant number, since it is smaller than the sum of its proper divisors (5159257278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4221210402 is a wasteful number, since it uses less digits than its factorization.

4221210402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78170574 (or 78170568 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 4221210402 is about 64970.8427065557. The cubic root of 4221210402 is about 1616.1400765030.

Adding to 4221210402 its reverse (2040121224), we get a palindrome (6261331626).

The spelling of 4221210402 in words is "four billion, two hundred twenty-one million, two hundred ten thousand, four hundred two".