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11002220220 = 2235183370337
BaseRepresentation
bin10100011111100100…
…01000111010111100
31001101202121200210210
422033302020322330
5140013032021340
65015423432420
7536434220535
oct121762107274
931352550723
1011002220220
114736514992
122170755710
1310645240a4
147652cb68c
15445d7c180
hex28fc88ebc

11002220220 has 24 divisors (see below), whose sum is σ = 30806216784. Its totient is φ = 2933925376.

The previous prime is 11002220219. The next prime is 11002220221. The reversal of 11002220220 is 2202220011.

It is an interprime number because it is at equal distance from previous prime (11002220219) and next prime (11002220221).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11002220196 and 11002220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002220221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91685109 + ... + 91685228.

It is an arithmetic number, because the mean of its divisors is an integer number (1283592366).

Almost surely, 211002220220 is an apocalyptic number.

11002220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11002220220 is an abundant number, since it is smaller than the sum of its proper divisors (19803996564).

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

11002220220 is a wasteful number, since it uses less digits than its factorization.

11002220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183370349 (or 183370347 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 11002220220 its reverse (2202220011), we get a palindrome (13204440231).

The spelling of 11002220220 in words is "eleven billion, two million, two hundred twenty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 183370337 366740674 550111011 733481348 916851685 1100222022 1833703370 2200444044 2750555055 3667406740 5501110110 11002220220