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11112102212020 = 2254113551344161
BaseRepresentation
bin1010000110110011110011…
…1001111011000110110100
31110100022021111202002102221
42201230330321323012310
52424030041131241040
635344455043012124
72224552152232645
oct241547471730664
943308244662387
1011112102212020
1135a4686009027
1212b572466a044
13627b363048a4
142a5b85a1d6cc
151440b810474a
hexa1b3ce7b1b4

11112102212020 has 24 divisors (see below), whose sum is σ = 23904571101768. Its totient is φ = 4336430131200.

The previous prime is 11112102211957. The next prime is 11112102212053. The reversal of 11112102212020 is 2021220121111.

It can be written as a sum of positive squares in 4 ways, for example, as 738729936036 + 10373372275984 = 859494^2 + 3220772^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11112102211985 and 11112102212003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6775671261 + ... + 6775672900.

It is an arithmetic number, because the mean of its divisors is an integer number (996023795907).

Almost surely, 211112102212020 is an apocalyptic number.

11112102212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112102212020 is an abundant number, since it is smaller than the sum of its proper divisors (12792468889748).

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

11112102212020 is a wasteful number, since it uses less digits than its factorization.

11112102212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13551344211 (or 13551344209 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11112102212020 its reverse (2021220121111), we get a palindrome (13133322333131).

The spelling of 11112102212020 in words is "eleven trillion, one hundred twelve billion, one hundred two million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 13551344161 27102688322 54205376644 67756720805 135513441610 271026883220 555605110601 1111210221202 2222420442404 2778025553005 5556051106010 11112102212020