4015222401 has 32 divisors (see below), whose sum is σ = 5970475008. Its totient is φ = 2387221760.

The previous prime is 4015222397. The next prime is 4015222411. The reversal of 4015222401 is 1042225104.

It is a cyclic number.

It is not a de Polignac number, because 4015222401 - 2² = 4015222397 is a prime.

It is a super-2 number, since 2×4015222401² = 32244021858984409602, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4015222411) 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, 109516 + ... + 141506.

It is an arithmetic number, because the mean of its divisors is an integer number (186577344).

Almost surely, 2^4015222401 is an apocalyptic number.

It is an amenable number.

4015222401 is a deficient number, since it is larger than the sum of its proper divisors (1955252607).

4015222401 is a wasteful number, since it uses less digits than its factorization.

4015222401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32141.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 4015222401 is about 63365.7825723000. The cubic root of 4015222401 is about 1589.4121742259.

Adding to 4015222401 its reverse (1042225104), we get a palindrome (5057447505).

The spelling of 4015222401 in words is "four billion, fifteen million, two hundred twenty-two thousand, four hundred one".