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11111014220 = 225555550711
BaseRepresentation
bin10100101100100010…
…01001111101001100
31001200100100000010012
422112101021331030
5140223404423340
65034311332352
7542225030315
oct122621117514
931610300105
1011111014220
114791972489
1221a10810b8
131080c26537
1477592b60c
154506bc565
hex296449f4c

11111014220 has 12 divisors (see below), whose sum is σ = 23333129904. Its totient is φ = 4444405680.

The previous prime is 11111014219. The next prime is 11111014249. The reversal of 11111014220 is 2241011111.

It is a junction number, because it is equal to n+sod(n) for n = 11111014195 and 11111014204.

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, 277775336 + ... + 277775375.

It is an arithmetic number, because the mean of its divisors is an integer number (1944427492).

Almost surely, 211111014220 is an apocalyptic number.

11111014220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111014220 is an abundant number, since it is smaller than the sum of its proper divisors (12222115684).

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

11111014220 is a wasteful number, since it uses less digits than its factorization.

11111014220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555550720 (or 555550718 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11111014220 its reverse (2241011111), we get a palindrome (13352025331).

The spelling of 11111014220 in words is "eleven billion, one hundred eleven million, fourteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 555550711 1111101422 2222202844 2777753555 5555507110 11111014220