220021336 has 16 divisors (see below), whose sum is σ = 413526240. Its totient is φ = 109747680.

The previous prime is 220021313. The next prime is 220021337. The reversal of 220021336 is 633120022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220021337) 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, 29296 + ... + 36031.

It is an arithmetic number, because the mean of its divisors is an integer number (25845390).

Almost surely, 2^220021336 is an apocalyptic number.

It is an amenable number.

220021336 is a deficient number, since it is larger than the sum of its proper divisors (193504904).

220021336 is a wasteful number, since it uses less digits than its factorization.

220021336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65754 (or 65750 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 220021336 is about 14833.1161931672. The cubic root of 220021336 is about 603.7005884116.

Adding to 220021336 its reverse (633120022), we get a palindrome (853141358).

The spelling of 220021336 in words is "two hundred twenty million, twenty-one thousand, three hundred thirty-six".