4221522652 has 6 divisors (see below), whose sum is σ = 7387664648. Its totient is φ = 2110761324.

The previous prime is 4221522623. The next prime is 4221522661. The reversal of 4221522652 is 2562251224.

It is a super-2 number, since 2×4221522652² = 35642507002698226208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527690328 + ... + 527690335.

Almost surely, 2^4221522652 is an apocalyptic number.

It is an amenable number.

4221522652 is a deficient number, since it is larger than the sum of its proper divisors (3166141996).

4221522652 is a wasteful number, since it uses less digits than its factorization.

4221522652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055380667 (or 1055380665 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 4221522652 is about 64973.2456631189. The cubic root of 4221522652 is about 1616.1799250494.

Adding to 4221522652 its reverse (2562251224), we get a palindrome (6783773876).

The spelling of 4221522652 in words is "four billion, two hundred twenty-one million, five hundred twenty-two thousand, six hundred fifty-two".