220211355 has 64 divisors (see below), whose sum is σ = 448680960. Its totient is φ = 89703936.

The previous prime is 220211347. The next prime is 220211357. The reversal of 220211355 is 553112022.

It is not a de Polignac number, because 220211355 - 2³ = 220211347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (220211357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36804 + ... + 42366.

It is an arithmetic number, because the mean of its divisors is an integer number (7010640).

Almost surely, 2^220211355 is an apocalyptic number.

220211355 is an abundant number, since it is smaller than the sum of its proper divisors (228469605).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220211355 is a wasteful number, since it uses less digits than its factorization.

220211355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5620.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 220211355 is about 14839.5200394083. The cubic root of 220211355 is about 603.8743315222.

Adding to 220211355 its reverse (553112022), we get a palindrome (773323377).

It can be divided in two parts, 220 and 211355, that added together give a triangular number (211575 = T₆₅₀).

The spelling of 220211355 in words is "two hundred twenty million, two hundred eleven thousand, three hundred fifty-five".