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2202220220 = 225110111011
BaseRepresentation
bin1000001101000011…
…0011011010111100
312200110212101012212
42003100303122330
514002232021340
61002305115552
7105400364054
oct20320633274
95613771185
102202220220
11a30106712
12515628bb8
1329132b0b5
1416c698564
15cd509a65
hex834336bc

2202220220 has 12 divisors (see below), whose sum is σ = 4624662504. Its totient is φ = 880888080.

The previous prime is 2202220219. The next prime is 2202220271. The reversal of 2202220220 is 220222022.

It is a happy number.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2202220195 and 2202220204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55055486 + ... + 55055525.

It is an arithmetic number, because the mean of its divisors is an integer number (385388542).

Almost surely, 22202220220 is an apocalyptic number.

2202220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2202220220 is an abundant number, since it is smaller than the sum of its proper divisors (2422442284).

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

2202220220 is a wasteful number, since it uses less digits than its factorization.

2202220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110111020 (or 110111018 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 2202220220 is about 46927.8192546809. The cubic root of 2202220220 is about 1301.0288147767.

Adding to 2202220220 its reverse (220222022), we get a palindrome (2422442242).

The spelling of 2202220220 in words is "two billion, two hundred two million, two hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 110111011 220222022 440444044 550555055 1101110110 2202220220