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11022102220 = 225551105111
BaseRepresentation
bin10100100001111011…
…11110111011001100
31001110011000210210011
422100331332323030
5140033124232340
65021413523004
7540065215543
oct122075767314
931404023704
1011022102220
114746764598
122177343464
13106869589c
14767bc515a
154479a80ea
hex290f7eecc

11022102220 has 12 divisors (see below), whose sum is σ = 23146414704. Its totient is φ = 4408840880.

The previous prime is 11022102089. The next prime is 11022102233. The reversal of 11022102220 is 2220122011.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11022102220.

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, 275552536 + ... + 275552575.

It is an arithmetic number, because the mean of its divisors is an integer number (1928867892).

Almost surely, 211022102220 is an apocalyptic number.

11022102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11022102220 is an abundant number, since it is smaller than the sum of its proper divisors (12124312484).

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

11022102220 is a wasteful number, since it uses less digits than its factorization.

11022102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551105120 (or 551105118 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 11022102220 its reverse (2220122011), we get a palindrome (13242224231).

The spelling of 11022102220 in words is "eleven billion, twenty-two million, one hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 551105111 1102210222 2204420444 2755525555 5511051110 11022102220