4221222152 has 16 divisors (see below), whose sum is σ = 9045476160. Its totient is φ = 1809095184.

The previous prime is 4221222149. The next prime is 4221222157. The reversal of 4221222152 is 2512221224.

It is a super-2 number, since 2×4221222152² = 35637432913071022208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4221222157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37689428 + ... + 37689539.

It is an arithmetic number, because the mean of its divisors is an integer number (565342260).

Almost surely, 2^4221222152 is an apocalyptic number.

It is an amenable number.

4221222152 is an abundant number, since it is smaller than the sum of its proper divisors (4824254008).

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

4221222152 is a wasteful number, since it uses less digits than its factorization.

4221222152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75378980 (or 75378976 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 4221222152 is about 64970.9331316705. The cubic root of 4221222152 is about 1616.1415760435.

Adding to 4221222152 its reverse (2512221224), we get a palindrome (6733443376).

The spelling of 4221222152 in words is "four billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred fifty-two".