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2112220022 = 211831156747
BaseRepresentation
bin111110111100101…
…1110101101110110
312110012111220011012
41331321132231312
513311212020042
6545332112222
7103225400603
oct17571365566
95405456135
102112220022
11994325190
124ab465672
132787a9043
1416074b6aa
15c567ce82
hex7de5eb76

2112220022 has 16 divisors (see below), whose sum is σ = 3498005952. Its totient is φ = 948531720.

The previous prime is 2112219917. The next prime is 2112220031. The reversal of 2112220022 is 2200222112.

It is a super-2 number, since 2×21122200222 = 8922946842675360968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112219979 and 2112220006.

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, 576548 + ... + 580199.

It is an arithmetic number, because the mean of its divisors is an integer number (218625372).

Almost surely, 22112220022 is an apocalyptic number.

2112220022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2112220022 is a deficient number, since it is larger than the sum of its proper divisors (1385785930).

2112220022 is a wasteful number, since it uses less digits than its factorization.

2112220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156843.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2112220022 is about 45958.8949170887. The cubic root of 2112220022 is about 1283.0582839941.

Adding to 2112220022 its reverse (2200222112), we get a palindrome (4312442134).

It can be divided in two parts, 2112 and 220022, that multiplied together give a palindrome (464686464).

The spelling of 2112220022 in words is "two billion, one hundred twelve million, two hundred twenty thousand, twenty-two".

Divisors: 1 2 11 22 83 166 913 1826 1156747 2313494 12724217 25448434 96010001 192020002 1056110011 2112220022