220214641 has 4 divisors (see below), whose sum is σ = 221487732. Its totient is φ = 218941552.

The previous prime is 220214623. The next prime is 220214711. The reversal of 220214641 is 146412022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 210134016 + 10080625 = 14496^2 + 3175^2 .

It is a cyclic number.

It is not a de Polignac number, because 220214641 - 2¹⁵ = 220181873 is a prime.

It is a super-2 number, since 2×220214641² = 96988976221517762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220214611) 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, 636286 + ... + 636631.

It is an arithmetic number, because the mean of its divisors is an integer number (55371933).

Almost surely, 2^220214641 is an apocalyptic number.

It is an amenable number.

220214641 is a deficient number, since it is larger than the sum of its proper divisors (1273091).

220214641 is a wasteful number, since it uses less digits than its factorization.

220214641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273090.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 220214641 is about 14839.6307568618. The cubic root of 220214641 is about 603.8773351839.

Adding to 220214641 its reverse (146412022), we get a palindrome (366626663).

It can be divided in two parts, 22021 and 4641, that added together give a palindrome (26662).

The spelling of 220214641 in words is "two hundred twenty million, two hundred fourteen thousand, six hundred forty-one".