4220556231 has 16 divisors (see below), whose sum is σ = 5668074720. Its totient is φ = 2793431040.

The previous prime is 4220556227. The next prime is 4220556239. The reversal of 4220556231 is 1326550224.

It is not a de Polignac number, because 4220556231 - 2² = 4220556227 is a prime.

It is a super-2 number, since 2×4220556231² = 35626189798065850722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220556239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287551 + ... + 301871.

It is an arithmetic number, because the mean of its divisors is an integer number (354254670).

Almost surely, 2^4220556231 is an apocalyptic number.

4220556231 is a deficient number, since it is larger than the sum of its proper divisors (1447518489).

4220556231 is a wasteful number, since it uses less digits than its factorization.

4220556231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15026.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 4220556231 is about 64965.8081686051. The cubic root of 4220556231 is about 1616.0565865015.

The spelling of 4220556231 in words is "four billion, two hundred twenty million, five hundred fifty-six thousand, two hundred thirty-one".