4221146615 has 32 divisors (see below), whose sum is σ = 5849210880. Its totient is φ = 2864553984.

The previous prime is 4221146603. The next prime is 4221146617. The reversal of 4221146615 is 5166411224.

It is a cyclic number.

It is not a de Polignac number, because 4221146615 - 2⁶ = 4221146551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221146617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1464746 + ... + 1467624.

It is an arithmetic number, because the mean of its divisors is an integer number (182787840).

Almost surely, 2^4221146615 is an apocalyptic number.

4221146615 is a deficient number, since it is larger than the sum of its proper divisors (1628064265).

4221146615 is a wasteful number, since it uses less digits than its factorization.

4221146615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3311.

The product of its digits is 11520, while the sum is 32.

The square root of 4221146615 is about 64970.3518152703. The cubic root of 4221146615 is about 1616.1319359275.

Adding to 4221146615 its reverse (5166411224), we get a palindrome (9387557839).

The spelling of 4221146615 in words is "four billion, two hundred twenty-one million, one hundred forty-six thousand, six hundred fifteen".